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Federated overview of the APIs.io catalog for a query: the top matching APIs, providers, AND tags in one call, each with its total match count. Filt"},{"name":"get_prices","description":"What one call costs on the pay-as-you-go plan, by cost band. FREE — and deliberately so: an agent that learns a price only when it is refused has already been r"},{"name":"get_playground_apis","description":"Curated APIs that are SAFE TO EXPERIMENT WITH — no key (or an instant, free, self-serve key), no cost, and no real-world side effects. Free, and deliberately so"},{"name":"find_apis","description":"Paginated, sortable list of APIs across providers — filter by tag, provider, artifact type, industry, region, or rating band. Matching is LEXICAL: `q` searches "},{"name":"get_api","description":"Full detail for one API by aid (provider:api-slug); set include=[\"content\"] to inline artifact bodies. 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Use find_providers?country=slug for the full ranked list, or view=full her"},{"name":"find_areas","description":"Browse the API Evangelist areas taxonomy (authentication, webhooks, payments, …) — curated, scored provider indexes. Search by text; sort by provider count."},{"name":"get_area","description":"One area: metadata, its dedicated site link, and a top sample of member providers (with the total). Use find_providers?area=slug for the full list, or view=full"},{"name":"find_regulations","description":"Browse the laws, statutes and accreditations the catalog tracks, each joined to the countries, regions and industries it binds. Filter by scope=horizontal to ge"},{"name":"get_regulation","description":"One regulation: what it is, its jurisdiction and scope, a link to the law itself, and reaches[] — the country, region and industry cohorts this regime binds. Us"},{"name":"find_extensions","description":"Browse every OpenAPI `x-` specification extension harvested across the catalog, with the provenance the OpenAPI Initiative registry does not carry: who publishe"},{"name":"get_extension","description":"One OpenAPI specification extension: its publishers, occurrence and document counts, where it appears, and the value shapes observed. CHECK is_api_evangelist BE"},{"name":"find_ratings","description":"Ranked ratings leaderboard — filter by band, score range, trend, or facet threshold. Sort by composite (default), delta (biggest gainers), or any quality facet "},{"name":"get_provider_rating","description":"One provider's full rating breakdown (composite, band, trend, six facets). Priced B1 (single-entity synthesis) — $0.01 per call under pay-as-you-go; included in"},{"name":"find_cohorts","description":"START HERE for market-level questions. Every scored population of providers in the catalog — tags, industries, regions, areas and VC portfolios — as one browsab"},{"name":"get_cohort","description":"One cohort: its identity, its population, and the full member roster with each provider's Kin Score and agent readiness. Understanding plan. The analysis parts "},{"name":"find_tag_groups","description":"START HERE for capability-map questions. The 1,500+ tag groups the catalog computes — sets of tags that demonstrably travel together across providers (Cards, Lo"},{"name":"get_tag_group","description":"One tag group: its member tags and the full provider roster resolved from the catalog, each with Kin Score and agent readiness. Filter the roster by industry, r"},{"name":"tag_group_tags","description":"The member tags of one tag group, each joined to its catalog record — provider count, api count, tag quality band and composite. Use it to see what a group is a"},{"name":"cohort_stats","description":"UNDERSTANDING — the DISTRIBUTION for a whole market: Kin Score mean/median/min/max/stdev, agent-readiness spread, band split, per-facet averages, and artifact a"},{"name":"cohort_rankings","description":"UNDERSTANDING — the leaderboard for a market, on TWO axes: rank by Kin Score composite AND rank by agent readiness. The two orders differ, and the gap between a"},{"name":"cohort_scores","description":"UNDERSTANDING — facet-level scores for every member of a cohort, each with the cohort average and the delta against it. 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There was a per-provider series and a whole"},{"name":"cohort_failures","description":"UNDERSTANDING — what a whole market gets WRONG: the agent-readiness checks its members most commonly fail, ranked by what fixing each would move the cohort mean"},{"name":"cohort_capabilities","description":"UNDERSTANDING — what every member of a cohort actually publishes: artifact counts by type plus the agent-readiness dimensions each one satisfies. The capability"},{"name":"compare_cohorts","description":"UNDERSTANDING — two markets side by side on one rubric: \"is US payments further along than UK banking?\" Returns both distributions plus the deltas on score, age"},{"name":"get_provider_operations","description":"Every operation a provider exposes, across all of its OpenAPIs — method, path, operationId, summary, which API it belongs to, and whether it is deprecated. The "},{"name":"get_provider_tools","description":"Every MCP tool a provider ships, with the operation each one wraps and its auth. Reports provenance per tool: `first-party` means the provider publishes that se"},{"name":"get_provider_schema","description":"Every JSON Schema a provider publishes — the data shapes their API works in, in one list, without walking their artifacts. Free."},{"name":"get_provider_facets","description":"UNDERSTANDING — one provider's score broken into its facets (discoverability, contract quality, governance, operational transparency, developer ergonomics, comm"},{"name":"get_agent_readiness","description":"EXPLORE — the agent-readiness dimensions and standalone score for ONE provider (spec presence, MCP server, auth clarity, idempotency, error semantics, rate-limi"},{"name":"find_agent_readiness","description":"UNDERSTANDING — the agent-readiness leaderboard across the whole catalog. Rank providers by agent readiness, and filter to those that DO satisfy (has) or do NOT"},{"name":"agent_readiness_dimensions","description":"UNDERSTANDING — diffusion: for each agent-readiness dimension, how many scored providers satisfy it, out of how many, as a share. The denominator every \"the age"},{"name":"find_capabilities","description":"START HERE for \"what can a business do with these APIs\". The business-capability model — 333 top-level capabilities across 28 industries — with how many catalog"},{"name":"get_capability","description":"One business capability: its definition, its sub-capabilities, the external authorities it cites, and WHICH catalog providers reach it with their ratings. Accep"},{"name":"get_capability_edges","description":"UNDERSTANDING — the evidence behind a capability. Every edge that lands on it: the provider, the tag, the exact OpenAPI file, a calibrated confidence, and the Q"},{"name":"get_provider_business_capabilities","description":"UNDERSTANDING — what ONE vendor's published APIs let a business DO, rolled up by capability, with the tag-level evidence under each. Answers \"what is this vendo"},{"name":"get_provider_capabilities","description":"What one provider publishes, counted by artifact type, with the agent dimensions it satisfies. Free — it is a fact about their own public surface. NOTE: this is"},{"name":"get_provider_evidence","description":"How a provider's score was established, part by part: first-party (they published it), verified (we fetched and confirmed it), or derived (we inferred it). Free"},{"name":"get_rating_rubric","description":"UNDERSTANDING — the rubric: bands, facet weights, trend thresholds, so an agent can interpret any score. Moved behind the paywall with the ratings data on 2026-"},{"name":"find_artifacts","description":"Find artifacts of ANY one type across the catalog — the cross-type entry point. Each type also has a dedicated find_<type> tool (find_mcp, find_rules, find_scop"},{"name":"compare_providers","description":"UNDERSTANDING — Compare 2+ providers side by side: composite/band, per-facet leaders, and an artifact-coverage matrix. Priced B2 (cross-catalog synthesis) — $0."},{"name":"gap_analysis","description":"UNDERSTANDING — For each provider: high-value artifacts it lacks (MCP, Arazzo, Rules, Skills…), what its peers commonly publish but it lacks, and its score vs t"},{"name":"whats_changed","description":"UNDERSTANDING — What changed in the catalog since a date: providers added/updated, plus rating movement measured FROM THAT DATE — each provider's current score "},{"name":"recommend_stack","description":"Design an API stack — the best-rated catalog provider per capability, assembled into a stack. The Understanding preview is the top pick per capability; the full"},{"name":"get_provider_apis","description":"Every API one provider publishes, as a page you can filter — the provider's own catalog rather than the whole network's. Prefer this over find_apis with a `prov"},{"name":"get_provider_artifacts","description":"Every artifact a provider publishes — provider-level (MCP, security, scopes, rules, agentic-access) and per-API (OpenAPI, Arazzo, overlays, reference docs) — gr"},{"name":"get_api_artifacts","description":"One API's artifacts grouped by type (by_type_counts is the full summary); pass `type` to scope the list to one type (synonym-aware: MCP matches MCPServer), incl"},{"name":"get_openapi","description":"An API's primary OpenAPI reference (url) — the top agent intent; set include=[\"content\"] to inline the spec body."},{"name":"get_provider_onboarding","description":"A getting-started view for a provider — website, portal, signup, docs, authentication, base URLs, and first steps assembled from its registered links."},{"name":"find_similar_providers","description":"Providers similar to a given one (alternatives) by shared tags, areas, industry, region, and artifact coverage. Products under the same owner (a sister, not a r"},{"name":"find_similar_apis","description":"APIs similar to a given one (\"more like this\") by shared tags."},{"name":"get_industry_leaders","description":"UNDERSTANDING — Top-rated providers in an industry vertical. Priced B1 (single-entity synthesis) — $0.01 per call under pay-as-you-go; included in Understanding"},{"name":"get_region_leaders","description":"UNDERSTANDING — Top-rated providers in a region. Priced B1 (single-entity synthesis) — $0.01 per call under pay-as-you-go; included in Understanding and Influen"},{"name":"get_country_leaders","description":"UNDERSTANDING — Top-rated providers in one country. Membership is derived and partial, so read the ranking as \"the best of what we have placed there\", not a nat"},{"name":"get_area_leaders","description":"UNDERSTANDING — Top-rated providers in a curated API Evangelist area. 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Every agent-readiness check with points still on the table (exact — these are real per-check "},{"name":"readiness_gates","description":"INFLUENCE — what blocks the next agent-readiness band, GATES BEFORE POINTS. Some bands are unreachable on score alone: agent-native requires idempotency AND a s"},{"name":"simulate_fixes","description":"INFLUENCE — project a set of fixes onto a provider's agent-readiness score and band before doing the work. Re-applies the band gate to the PROJECTED state, so i"},{"name":"claim_listing","description":"INFLUENCE — ask to claim a listing as yours. Returns 202 with a token and the hosts it will be checked against: publish it as a DNS TXT record, or as a file at "},{"name":"generate_artifact","description":"INFLUENCE — REQUEST an artifact you are being marked down for not having: apis-json, agent-card, mcp (one tool per operation you already publish), arazzo, rules"},{"name":"submit_artifact","description":"INFLUENCE — tell us about an artifact you publish, rather than waiting for us to find it. Returns 202; a person fetches it, checks it and re-runs the pipeline a"},{"name":"correct_facts","description":"INFLUENCE — propose corrections to what we say about you: name, description, url, industries, tags. Returns 202 and is applied by a person — an API that let an "},{"name":"dispute_finding","description":"INFLUENCE — \"you say we lack X, here it is.\" Send the claim in words and a URL that evidences it. 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Use it when a listing is wrong or stale, when a score looks incorrect, or to get a company profiled that is not "},{"name":"check_status","description":"INFLUENCE — the status of a check request by id: queued, in_review, running, done, rejected or needs_info, with any notes shared by the reviewer. The id identif"},{"name":"find_agents","description":"FREE, no account — the A2A agent registry: agents that registered THEMSELVES by serving an agent card and calling register_agent. Each row carries the card URL,"},{"name":"register_agent","description":"FREE, no account — register yourself in the A2A agent registry. Serve an agent card at /.well-known/agent-card.json on a host you control, then call this with i"},{"name":"report_gap","description":"FREE, no account — tell the catalog what you looked for and could not find. The consumer door (roadmap#166): a gap report is how the catalog learns what to add "},{"name":"my_checks","description":"INFLUENCE — the check requests you filed, newest first. Requires a key or login — an anonymous caller has no identity to scope a list to, and should read a sing"},{"name":"export_dataset","description":"LICENCE (sold on the Influence plan) — the WHOLE dataset, not a 100-row page: `ratings` (every rated provider with facets, trend, rubric + provenance), `provide"},{"name":"industry_gap_analysis","description":"UNDERSTANDING — Valuable artifact types (MCP, Arazzo, Rules, Skills…) commonly missing across a whole industry — where the vertical is under-served. Priced B2 ("},{"name":"export_stack","description":"UNDERSTANDING — Export a designed capability stack as an adoptable APIs.json document (with an Arazzo hint) the team can commit. 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Use get_provider_estate(slug) to go th"},{"name":"get_provider_estate","description":"Which corporate estate a provider belongs to, if any. Answers 200 with estate:null when the provider stands alone — that is a measured absence, not a missing re"},{"name":"find_regions","description":"Browse geographic regions; sort by provider/API count. Returns the 18 regions themselves. The collection also holds region x industry crossover pages (nordics-h"},{"name":"get_region","description":"One region: metadata + a top sample of its member providers (ranked, with the total). Use find_providers?region=slug for the full list, or view=full here. Resul"},{"name":"find_countries","description":"Browse the country dimension — the finest of the four place taxonomies, and the one a buyer usually names (\"who is in Germany\"). Peer to find_industries / find_"},{"name":"get_country","description":"One country: metadata, counts, and a top sample of member providers (with the total). Use find_providers?country=slug for the full ranked list, or view=full her"},{"name":"find_areas","description":"Browse the API Evangelist areas taxonomy (authentication, webhooks, payments, …) — curated, scored provider indexes. Search by text; sort by provider count."},{"name":"get_area","description":"One area: metadata, its dedicated site link, and a top sample of member providers (with the total). Use find_providers?area=slug for the full list, or view=full"},{"name":"find_regulations","description":"Browse the laws, statutes and accreditations the catalog tracks, each joined to the countries, regions and industries it binds. Filter by scope=horizontal to ge"},{"name":"get_regulation","description":"One regulation: what it is, its jurisdiction and scope, a link to the law itself, and reaches[] — the country, region and industry cohorts this regime binds. Us"},{"name":"find_extensions","description":"Browse every OpenAPI `x-` specification extension harvested across the catalog, with the provenance the OpenAPI Initiative registry does not carry: who publishe"},{"name":"get_extension","description":"One OpenAPI specification extension: its publishers, occurrence and document counts, where it appears, and the value shapes observed. CHECK is_api_evangelist BE"},{"name":"find_ratings","description":"Ranked ratings leaderboard — filter by band, score range, trend, or facet threshold. Sort by composite (default), delta (biggest gainers), or any quality facet "},{"name":"get_provider_rating","description":"One provider's full rating breakdown (composite, band, trend, six facets). Priced B1 (single-entity synthesis) — $0.01 per call under pay-as-you-go; included in"},{"name":"find_cohorts","description":"START HERE for market-level questions. Every scored population of providers in the catalog — tags, industries, regions, areas and VC portfolios — as one browsab"},{"name":"get_cohort","description":"One cohort: its identity, its population, and the full member roster with each provider's Kin Score and agent readiness. Understanding plan. The analysis parts "},{"name":"find_tag_groups","description":"START HERE for capability-map questions. The 1,500+ tag groups the catalog computes — sets of tags that demonstrably travel together across providers (Cards, Lo"},{"name":"get_tag_group","description":"One tag group: its member tags and the full provider roster resolved from the catalog, each with Kin Score and agent readiness. Filter the roster by industry, r"},{"name":"tag_group_tags","description":"The member tags of one tag group, each joined to its catalog record — provider count, api count, tag quality band and composite. Use it to see what a group is a"},{"name":"cohort_stats","description":"UNDERSTANDING — the DISTRIBUTION for a whole market: Kin Score mean/median/min/max/stdev, agent-readiness spread, band split, per-facet averages, and artifact a"},{"name":"cohort_rankings","description":"UNDERSTANDING — the leaderboard for a market, on TWO axes: rank by Kin Score composite AND rank by agent readiness. The two orders differ, and the gap between a"},{"name":"cohort_scores","description":"UNDERSTANDING — facet-level scores for every member of a cohort, each with the cohort average and the delta against it. A 60 in governance means nothing until y"},{"name":"find_operations","description":"UNDERSTANDING — CATALOG-WIDE operation search: which providers expose a path matching your terms. \"Who has a POST /refunds\" had no answer before this — tags are"},{"name":"deprecated_operations","description":"UNDERSTANDING — every provider publishing at least one operation marked deprecated in its own OpenAPI, ranked by how many. The lifecycle view of the catalog: 8,"},{"name":"cohort_history","description":"UNDERSTANDING — the SET-LEVEL time series: how a whole market's Kin Score and agent readiness moved, build by build. There was a per-provider series and a whole"},{"name":"cohort_failures","description":"UNDERSTANDING — what a whole market gets WRONG: the agent-readiness checks its members most commonly fail, ranked by what fixing each would move the cohort mean"},{"name":"cohort_capabilities","description":"UNDERSTANDING — what every member of a cohort actually publishes: artifact counts by type plus the agent-readiness dimensions each one satisfies. The capability"},{"name":"compare_cohorts","description":"UNDERSTANDING — two markets side by side on one rubric: \"is US payments further along than UK banking?\" Returns both distributions plus the deltas on score, age"},{"name":"get_provider_operations","description":"Every operation a provider exposes, across all of its OpenAPIs — method, path, operationId, summary, which API it belongs to, and whether it is deprecated. The "},{"name":"get_provider_tools","description":"Every MCP tool a provider ships, with the operation each one wraps and its auth. Reports provenance per tool: `first-party` means the provider publishes that se"},{"name":"get_provider_schema","description":"Every JSON Schema a provider publishes — the data shapes their API works in, in one list, without walking their artifacts. Free."},{"name":"get_provider_facets","description":"UNDERSTANDING — one provider's score broken into its facets (discoverability, contract quality, governance, operational transparency, developer ergonomics, comm"},{"name":"get_agent_readiness","description":"EXPLORE — the agent-readiness dimensions and standalone score for ONE provider (spec presence, MCP server, auth clarity, idempotency, error semantics, rate-limi"},{"name":"find_agent_readiness","description":"UNDERSTANDING — the agent-readiness leaderboard across the whole catalog. Rank providers by agent readiness, and filter to those that DO satisfy (has) or do NOT"},{"name":"agent_readiness_dimensions","description":"UNDERSTANDING — diffusion: for each agent-readiness dimension, how many scored providers satisfy it, out of how many, as a share. The denominator every \"the age"},{"name":"find_capabilities","description":"START HERE for \"what can a business do with these APIs\". The business-capability model — 333 top-level capabilities across 28 industries — with how many catalog"},{"name":"get_capability","description":"One business capability: its definition, its sub-capabilities, the external authorities it cites, and WHICH catalog providers reach it with their ratings. Accep"},{"name":"get_capability_edges","description":"UNDERSTANDING — the evidence behind a capability. Every edge that lands on it: the provider, the tag, the exact OpenAPI file, a calibrated confidence, and the Q"},{"name":"get_provider_business_capabilities","description":"UNDERSTANDING — what ONE vendor's published APIs let a business DO, rolled up by capability, with the tag-level evidence under each. Answers \"what is this vendo"},{"name":"get_provider_capabilities","description":"What one provider publishes, counted by artifact type, with the agent dimensions it satisfies. Free — it is a fact about their own public surface. NOTE: this is"},{"name":"get_provider_evidence","description":"How a provider's score was established, part by part: first-party (they published it), verified (we fetched and confirmed it), or derived (we inferred it). Free"},{"name":"get_rating_rubric","description":"UNDERSTANDING — the rubric: bands, facet weights, trend thresholds, so an agent can interpret any score. Moved behind the paywall with the ratings data on 2026-"},{"name":"find_artifacts","description":"Find artifacts of ANY one type across the catalog — the cross-type entry point. Each type also has a dedicated find_<type> tool (find_mcp, find_rules, find_scop"},{"name":"compare_providers","description":"UNDERSTANDING — Compare 2+ providers side by side: composite/band, per-facet leaders, and an artifact-coverage matrix. Priced B2 (cross-catalog synthesis) — $0."},{"name":"gap_analysis","description":"UNDERSTANDING — For each provider: high-value artifacts it lacks (MCP, Arazzo, Rules, Skills…), what its peers commonly publish but it lacks, and its score vs t"},{"name":"whats_changed","description":"UNDERSTANDING — What changed in the catalog since a date: providers added/updated, plus rating movement measured FROM THAT DATE — each provider's current score "},{"name":"recommend_stack","description":"Design an API stack — the best-rated catalog provider per capability, assembled into a stack. The Understanding preview is the top pick per capability; the full"},{"name":"get_provider_apis","description":"Every API one provider publishes, as a page you can filter — the provider's own catalog rather than the whole network's. Prefer this over find_apis with a `prov"},{"name":"get_provider_artifacts","description":"Every artifact a provider publishes — provider-level (MCP, security, scopes, rules, agentic-access) and per-API (OpenAPI, Arazzo, overlays, reference docs) — gr"},{"name":"get_api_artifacts","description":"One API's artifacts grouped by type (by_type_counts is the full summary); pass `type` to scope the list to one type (synonym-aware: MCP matches MCPServer), incl"},{"name":"get_openapi","description":"An API's primary OpenAPI reference (url) — the top agent intent; set include=[\"content\"] to inline the spec body."},{"name":"get_provider_onboarding","description":"A getting-started view for a provider — website, portal, signup, docs, authentication, base URLs, and first steps assembled from its registered links."},{"name":"find_similar_providers","description":"Providers similar to a given one (alternatives) by shared tags, areas, industry, region, and artifact coverage. Products under the same owner (a sister, not a r"},{"name":"find_similar_apis","description":"APIs similar to a given one (\"more like this\") by shared tags."},{"name":"get_industry_leaders","description":"UNDERSTANDING — Top-rated providers in an industry vertical. Priced B1 (single-entity synthesis) — $0.01 per call under pay-as-you-go; included in Understanding"},{"name":"get_region_leaders","description":"UNDERSTANDING — Top-rated providers in a region. Priced B1 (single-entity synthesis) — $0.01 per call under pay-as-you-go; included in Understanding and Influen"},{"name":"get_country_leaders","description":"UNDERSTANDING — Top-rated providers in one country. Membership is derived and partial, so read the ranking as \"the best of what we have placed there\", not a nat"},{"name":"get_area_leaders","description":"UNDERSTANDING — Top-rated providers in a curated API Evangelist area. Priced B1 (single-entity synthesis) — $0.01 per call under pay-as-you-go; included in Unde"},{"name":"get_rating_history","description":"UNDERSTANDING — A provider's REAL score time series: one point per scored build (composite + agent readiness on each date), plus a summary of the movement over "},{"name":"find_rating_movers","description":"UNDERSTANDING — The biggest rating movers (up and down) since the previous scoring build. Priced per result — $0.005 per request plus $0.0002 per record returne"},{"name":"story_leads","description":"OWNER — The weekly \"what's worth writing\" rollup: ranked story leads from the demand map crossed with rating movement — unmet demand (searched, no result), rise"},{"name":"what_can_i_fix","description":"INFLUENCE — the ranked, gated punch list for one provider you own. Every agent-readiness check with points still on the table (exact — these are real per-check "},{"name":"readiness_gates","description":"INFLUENCE — what blocks the next agent-readiness band, GATES BEFORE POINTS. Some bands are unreachable on score alone: agent-native requires idempotency AND a s"},{"name":"simulate_fixes","description":"INFLUENCE — project a set of fixes onto a provider's agent-readiness score and band before doing the work. Re-applies the band gate to the PROJECTED state, so i"},{"name":"claim_listing","description":"INFLUENCE — ask to claim a listing as yours. Returns 202 with a token and the hosts it will be checked against: publish it as a DNS TXT record, or as a file at "},{"name":"generate_artifact","description":"INFLUENCE — REQUEST an artifact you are being marked down for not having: apis-json, agent-card, mcp (one tool per operation you already publish), arazzo, rules"},{"name":"submit_artifact","description":"INFLUENCE — tell us about an artifact you publish, rather than waiting for us to find it. Returns 202; a person fetches it, checks it and re-runs the pipeline a"},{"name":"correct_facts","description":"INFLUENCE — propose corrections to what we say about you: name, description, url, industries, tags. Returns 202 and is applied by a person — an API that let an "},{"name":"dispute_finding","description":"INFLUENCE — \"you say we lack X, here it is.\" Send the claim in words and a URL that evidences it. Returns 202; a person fetches your evidence, checks it against"},{"name":"set_visibility","description":"INFLUENCE — ask to be shown less, or not at all. `restricted` keeps a name, a description and a link to your own site, unrated and out of every ranked view; `de"},{"name":"watch_listing","description":"INFLUENCE — be told when a listing you care about moves: score changes, band changes, agent-band changes, or a check closing. REQUIRES a destination: `contact` "},{"name":"list_watches","description":"INFLUENCE — the listings you are watching, with the events registered for each and when you started. The read half of watch_listing: call it before registering "},{"name":"unwatch_listing","description":"INFLUENCE — stop watching a listing. Takes effect immediately and removes the registration outright; there is no paused state. Removing a watch that was never r"},{"name":"request_check","description":"INFLUENCE — ask APIs.io to (re)check something. Use it when a listing is wrong or stale, when a score looks incorrect, or to get a company profiled that is not "},{"name":"check_status","description":"INFLUENCE — the status of a check request by id: queued, in_review, running, done, rejected or needs_info, with any notes shared by the reviewer. The id identif"},{"name":"find_agents","description":"FREE, no account — the A2A agent registry: agents that registered THEMSELVES by serving an agent card and calling register_agent. Each row carries the card URL,"},{"name":"register_agent","description":"FREE, no account — register yourself in the A2A agent registry. Serve an agent card at /.well-known/agent-card.json on a host you control, then call this with i"},{"name":"report_gap","description":"FREE, no account — tell the catalog what you looked for and could not find. The consumer door (roadmap#166): a gap report is how the catalog learns what to add "},{"name":"my_checks","description":"INFLUENCE — the check requests you filed, newest first. Requires a key or login — an anonymous caller has no identity to scope a list to, and should read a sing"},{"name":"export_dataset","description":"LICENCE (sold on the Influence plan) — the WHOLE dataset, not a 100-row page: `ratings` (every rated provider with facets, trend, rubric + provenance), `provide"},{"name":"industry_gap_analysis","description":"UNDERSTANDING — Valuable artifact types (MCP, Arazzo, Rules, Skills…) commonly missing across a whole industry — where the vertical is under-served. Priced B2 ("},{"name":"export_stack","description":"UNDERSTANDING — Export a designed capability stack as an adoptable APIs.json document (with an Arazzo hint) the team can commit. Priced B3 (bulk export) — $0.00"},{"name":"insights_overview","description":"UNDERSTANDING — the Insights root: how many companies are profiled, over how many quarters, and the top investment dimensions across the whole set. Read this FI"},{"name":"find_company_insights","description":"Browse profiled companies (Fortune 1000) by name or industry; ranked by overall technology-readiness signal. `industry` takes an insights industry NAME from ins"},{"name":"insights_dimensions","description":"Cross-section ranking of the 40 tracked investment dimensions (AI, cloud, governance, security, …) by how many profiled companies show signal. Understanding pla"},{"name":"insights_adoption","description":"Services, tools, or standards ranked by how many companies adopt them across the profiled set. Understanding plan. Priced B2 (cross-catalog synthesis) — $0.05 p"},{"name":"insights_industries","description":"UNDERSTANDING — the demand-side industry rollup: the sectors the profiled companies fall into. Each row carries TWO counts and they answer different questions: "},{"name":"get_company_insight","description":"UNDERSTANDING — Full demand-side profile for one company: 40-dimension readiness scores, adopted stack, and per-quarter history. Priced B2 (cross-catalog synthe"}],"toolCount":141,"toolsHash":"380adba6ac2941aa22e7ca72d3dd5f0fa92b7860bbb229de4e1f4a8b56321da1","serverName":"apis.io","capabilities":["tools","resources","prompts"],"serverVersion":"1.3.0","protocolVersion":"2025-06-18"}},{"at":"2026-10-10T12:29:10.481Z","kind":"mcp_initialize","ok":true,"httpStatus":200,"latencyMs":316,"error":null,"detail":{"tools":[{"name":"apis_io_search","description":"START HERE. Federated overview of the APIs.io catalog for a query: the top matching APIs, providers, AND tags in one call, each with its total match count. Filt"},{"name":"get_prices","description":"What one call costs on the pay-as-you-go plan, by cost band. FREE — and deliberately so: an agent that learns a price only when it is refused has already been r"},{"name":"get_playground_apis","description":"Curated APIs that are SAFE TO EXPERIMENT WITH — no key (or an instant, free, self-serve key), no cost, and no real-world side effects. Free, and deliberately so"},{"name":"find_apis","description":"Paginated, sortable list of APIs across providers — filter by tag, provider, artifact type, industry, region, or rating band. Matching is LEXICAL: `q` searches "},{"name":"get_api","description":"Full detail for one API by aid (provider:api-slug); set include=[\"content\"] to inline artifact bodies. Results carry `next`: the sub-resources that exist for th"},{"name":"find_providers","description":"Paginated, sortable list of providers — filter by text, tag, artifact type, industry, region, rating band, access model (pricing/onboarding/try_now/public), or "},{"name":"get_provider","description":"Full detail for one provider: profile, rating, and the APIs it publishes. The heavy `collections` and `common` sections are omitted by default (their counts are"},{"name":"find_tags","description":"Paginated, sortable list of tags in the taxonomy. Filter by `axis` to separate MARKETS (a business someone is in) from CAPABILITIES (the name of a resource in s"},{"name":"get_tag","description":"One tag: its metadata, neighbor tags, and a top sample of its providers and APIs (with totals). `provider_count` counts companies that classify THEMSELVES here;"},{"name":"find_industries","description":"Browse industry verticals; sort by provider/API count."},{"name":"get_industry","description":"One industry: metadata + a top sample of its member providers (ranked, with the total). Use find_providers?industry=slug for the full list, or view=full here. R"},{"name":"find_estates","description":"Browse corporate estates — one COMPANY whose API surface is spread across many provider records (Amazon 237, Salesforce 27, Cisco 37). Ranked by member count. U"},{"name":"get_estate","description":"One estate: the owning provider, the full member roster with per-member API counts and bands, and the estate-wide rating. Use get_provider_estate(slug) to go th"},{"name":"get_provider_estate","description":"Which corporate estate a provider belongs to, if any. Answers 200 with estate:null when the provider stands alone — that is a measured absence, not a missing re"},{"name":"find_regions","description":"Browse geographic regions; sort by provider/API count. Returns the 18 regions themselves. The collection also holds region x industry crossover pages (nordics-h"},{"name":"get_region","description":"One region: metadata + a top sample of its member providers (ranked, with the total). Use find_providers?region=slug for the full list, or view=full here. Resul"},{"name":"find_countries","description":"Browse the country dimension — the finest of the four place taxonomies, and the one a buyer usually names (\"who is in Germany\"). Peer to find_industries / find_"},{"name":"get_country","description":"One country: metadata, counts, and a top sample of member providers (with the total). Use find_providers?country=slug for the full ranked list, or view=full her"},{"name":"find_areas","description":"Browse the API Evangelist areas taxonomy (authentication, webhooks, payments, …) — curated, scored provider indexes. Search by text; sort by provider count."},{"name":"get_area","description":"One area: metadata, its dedicated site link, and a top sample of member providers (with the total). Use find_providers?area=slug for the full list, or view=full"},{"name":"find_regulations","description":"Browse the laws, statutes and accreditations the catalog tracks, each joined to the countries, regions and industries it binds. Filter by scope=horizontal to ge"},{"name":"get_regulation","description":"One regulation: what it is, its jurisdiction and scope, a link to the law itself, and reaches[] — the country, region and industry cohorts this regime binds. Us"},{"name":"find_extensions","description":"Browse every OpenAPI `x-` specification extension harvested across the catalog, with the provenance the OpenAPI Initiative registry does not carry: who publishe"},{"name":"get_extension","description":"One OpenAPI specification extension: its publishers, occurrence and document counts, where it appears, and the value shapes observed. CHECK is_api_evangelist BE"},{"name":"find_ratings","description":"Ranked ratings leaderboard — filter by band, score range, trend, or facet threshold. Sort by composite (default), delta (biggest gainers), or any quality facet "},{"name":"get_provider_rating","description":"One provider's full rating breakdown (composite, band, trend, six facets). Priced B1 (single-entity synthesis) — $0.01 per call under pay-as-you-go; included in"},{"name":"find_cohorts","description":"START HERE for market-level questions. Every scored population of providers in the catalog — tags, industries, regions, areas and VC portfolios — as one browsab"},{"name":"get_cohort","description":"One cohort: its identity, its population, and the full member roster with each provider's Kin Score and agent readiness. Understanding plan. The analysis parts "},{"name":"find_tag_groups","description":"START HERE for capability-map questions. The 1,500+ tag groups the catalog computes — sets of tags that demonstrably travel together across providers (Cards, Lo"},{"name":"get_tag_group","description":"One tag group: its member tags and the full provider roster resolved from the catalog, each with Kin Score and agent readiness. Filter the roster by industry, r"},{"name":"tag_group_tags","description":"The member tags of one tag group, each joined to its catalog record — provider count, api count, tag quality band and composite. Use it to see what a group is a"},{"name":"cohort_stats","description":"UNDERSTANDING — the DISTRIBUTION for a whole market: Kin Score mean/median/min/max/stdev, agent-readiness spread, band split, per-facet averages, and artifact a"},{"name":"cohort_rankings","description":"UNDERSTANDING — the leaderboard for a market, on TWO axes: rank by Kin Score composite AND rank by agent readiness. The two orders differ, and the gap between a"},{"name":"cohort_scores","description":"UNDERSTANDING — facet-level scores for every member of a cohort, each with the cohort average and the delta against it. A 60 in governance means nothing until y"},{"name":"find_operations","description":"UNDERSTANDING — CATALOG-WIDE operation search: which providers expose a path matching your terms. \"Who has a POST /refunds\" had no answer before this — tags are"},{"name":"deprecated_operations","description":"UNDERSTANDING — every provider publishing at least one operation marked deprecated in its own OpenAPI, ranked by how many. The lifecycle view of the catalog: 8,"},{"name":"cohort_history","description":"UNDERSTANDING — the SET-LEVEL time series: how a whole market's Kin Score and agent readiness moved, build by build. There was a per-provider series and a whole"},{"name":"cohort_failures","description":"UNDERSTANDING — what a whole market gets WRONG: the agent-readiness checks its members most commonly fail, ranked by what fixing each would move the cohort mean"},{"name":"cohort_capabilities","description":"UNDERSTANDING — what every member of a cohort actually publishes: artifact counts by type plus the agent-readiness dimensions each one satisfies. The capability"},{"name":"compare_cohorts","description":"UNDERSTANDING — two markets side by side on one rubric: \"is US payments further along than UK banking?\" Returns both distributions plus the deltas on score, age"},{"name":"get_provider_operations","description":"Every operation a provider exposes, across all of its OpenAPIs — method, path, operationId, summary, which API it belongs to, and whether it is deprecated. The "},{"name":"get_provider_tools","description":"Every MCP tool a provider ships, with the operation each one wraps and its auth. Reports provenance per tool: `first-party` means the provider publishes that se"},{"name":"get_provider_schema","description":"Every JSON Schema a provider publishes — the data shapes their API works in, in one list, without walking their artifacts. Free."},{"name":"get_provider_facets","description":"UNDERSTANDING — one provider's score broken into its facets (discoverability, contract quality, governance, operational transparency, developer ergonomics, comm"},{"name":"get_agent_readiness","description":"EXPLORE — the agent-readiness dimensions and standalone score for ONE provider (spec presence, MCP server, auth clarity, idempotency, error semantics, rate-limi"},{"name":"find_agent_readiness","description":"UNDERSTANDING — the agent-readiness leaderboard across the whole catalog. Rank providers by agent readiness, and filter to those that DO satisfy (has) or do NOT"},{"name":"agent_readiness_dimensions","description":"UNDERSTANDING — diffusion: for each agent-readiness dimension, how many scored providers satisfy it, out of how many, as a share. The denominator every \"the age"},{"name":"find_capabilities","description":"START HERE for \"what can a business do with these APIs\". The business-capability model — 333 top-level capabilities across 28 industries — with how many catalog"},{"name":"get_capability","description":"One business capability: its definition, its sub-capabilities, the external authorities it cites, and WHICH catalog providers reach it with their ratings. Accep"},{"name":"get_capability_edges","description":"UNDERSTANDING — the evidence behind a capability. Every edge that lands on it: the provider, the tag, the exact OpenAPI file, a calibrated confidence, and the Q"},{"name":"get_provider_business_capabilities","description":"UNDERSTANDING — what ONE vendor's published APIs let a business DO, rolled up by capability, with the tag-level evidence under each. Answers \"what is this vendo"},{"name":"get_provider_capabilities","description":"What one provider publishes, counted by artifact type, with the agent dimensions it satisfies. Free — it is a fact about their own public surface. NOTE: this is"},{"name":"get_provider_evidence","description":"How a provider's score was established, part by part: first-party (they published it), verified (we fetched and confirmed it), or derived (we inferred it). Free"},{"name":"get_rating_rubric","description":"UNDERSTANDING — the rubric: bands, facet weights, trend thresholds, so an agent can interpret any score. Moved behind the paywall with the ratings data on 2026-"},{"name":"find_artifacts","description":"Find artifacts of ANY one type across the catalog — the cross-type entry point. Each type also has a dedicated find_<type> tool (find_mcp, find_rules, find_scop"},{"name":"compare_providers","description":"UNDERSTANDING — Compare 2+ providers side by side: composite/band, per-facet leaders, and an artifact-coverage matrix. Priced B2 (cross-catalog synthesis) — $0."},{"name":"gap_analysis","description":"UNDERSTANDING — For each provider: high-value artifacts it lacks (MCP, Arazzo, Rules, Skills…), what its peers commonly publish but it lacks, and its score vs t"},{"name":"whats_changed","description":"UNDERSTANDING — What changed in the catalog since a date: providers added/updated, plus rating movement measured FROM THAT DATE — each provider's current score "},{"name":"recommend_stack","description":"Design an API stack — the best-rated catalog provider per capability, assembled into a stack. The Understanding preview is the top pick per capability; the full"},{"name":"get_provider_apis","description":"Every API one provider publishes, as a page you can filter — the provider's own catalog rather than the whole network's. Prefer this over find_apis with a `prov"},{"name":"get_provider_artifacts","description":"Every artifact a provider publishes — provider-level (MCP, security, scopes, rules, agentic-access) and per-API (OpenAPI, Arazzo, overlays, reference docs) — gr"},{"name":"get_api_artifacts","description":"One API's artifacts grouped by type (by_type_counts is the full summary); pass `type` to scope the list to one type (synonym-aware: MCP matches MCPServer), incl"},{"name":"get_openapi","description":"An API's primary OpenAPI reference (url) — the top agent intent; set include=[\"content\"] to inline the spec body."},{"name":"get_provider_onboarding","description":"A getting-started view for a provider — website, portal, signup, docs, authentication, base URLs, and first steps assembled from its registered links."},{"name":"find_similar_providers","description":"Providers similar to a given one (alternatives) by shared tags, areas, industry, region, and artifact coverage. Products under the same owner (a sister, not a r"},{"name":"find_similar_apis","description":"APIs similar to a given one (\"more like this\") by shared tags."},{"name":"get_industry_leaders","description":"UNDERSTANDING — Top-rated providers in an industry vertical. Priced B1 (single-entity synthesis) — $0.01 per call under pay-as-you-go; included in Understanding"},{"name":"get_region_leaders","description":"UNDERSTANDING — Top-rated providers in a region. Priced B1 (single-entity synthesis) — $0.01 per call under pay-as-you-go; included in Understanding and Influen"},{"name":"get_country_leaders","description":"UNDERSTANDING — Top-rated providers in one country. Membership is derived and partial, so read the ranking as \"the best of what we have placed there\", not a nat"},{"name":"get_area_leaders","description":"UNDERSTANDING — Top-rated providers in a curated API Evangelist area. Priced B1 (single-entity synthesis) — $0.01 per call under pay-as-you-go; included in Unde"},{"name":"get_rating_history","description":"UNDERSTANDING — A provider's REAL score time series: one point per scored build (composite + agent readiness on each date), plus a summary of the movement over "},{"name":"find_rating_movers","description":"UNDERSTANDING — The biggest rating movers (up and down) since the previous scoring build. Priced per result — $0.005 per request plus $0.0002 per record returne"},{"name":"story_leads","description":"OWNER — The weekly \"what's worth writing\" rollup: ranked story leads from the demand map crossed with rating movement — unmet demand (searched, no result), rise"},{"name":"what_can_i_fix","description":"INFLUENCE — the ranked, gated punch list for one provider you own. 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Us"},{"name":"find_extensions","description":"Browse every OpenAPI `x-` specification extension harvested across the catalog, with the provenance the OpenAPI Initiative registry does not carry: who publishe"},{"name":"get_extension","description":"One OpenAPI specification extension: its publishers, occurrence and document counts, where it appears, and the value shapes observed. CHECK is_api_evangelist BE"},{"name":"find_ratings","description":"Ranked ratings leaderboard — filter by band, score range, trend, or facet threshold. Sort by composite (default), delta (biggest gainers), or any quality facet "},{"name":"get_provider_rating","description":"One provider's full rating breakdown (composite, band, trend, six facets). Priced B1 (single-entity synthesis) — $0.01 per call under pay-as-you-go; included in"},{"name":"find_cohorts","description":"START HERE for market-level questions. Every scored population of providers in the catalog — tags, industries, regions, areas and VC portfolios — as one browsab"},{"name":"get_cohort","description":"One cohort: its identity, its population, and the full member roster with each provider's Kin Score and agent readiness. Understanding plan. The analysis parts "},{"name":"find_tag_groups","description":"START HERE for capability-map questions. The 1,500+ tag groups the catalog computes — sets of tags that demonstrably travel together across providers (Cards, Lo"},{"name":"get_tag_group","description":"One tag group: its member tags and the full provider roster resolved from the catalog, each with Kin Score and agent readiness. Filter the roster by industry, r"},{"name":"tag_group_tags","description":"The member tags of one tag group, each joined to its catalog record — provider count, api count, tag quality band and composite. 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The "},{"name":"get_provider_tools","description":"Every MCP tool a provider ships, with the operation each one wraps and its auth. Reports provenance per tool: `first-party` means the provider publishes that se"},{"name":"get_provider_schema","description":"Every JSON Schema a provider publishes — the data shapes their API works in, in one list, without walking their artifacts. Free."},{"name":"get_provider_facets","description":"UNDERSTANDING — one provider's score broken into its facets (discoverability, contract quality, governance, operational transparency, developer ergonomics, comm"},{"name":"get_agent_readiness","description":"EXPLORE — the agent-readiness dimensions and standalone score for ONE provider (spec presence, MCP server, auth clarity, idempotency, error semantics, rate-limi"},{"name":"find_agent_readiness","description":"UNDERSTANDING — the agent-readiness leaderboard across the whole catalog. 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Prefer this over find_apis with a `prov"},{"name":"get_provider_artifacts","description":"Every artifact a provider publishes — provider-level (MCP, security, scopes, rules, agentic-access) and per-API (OpenAPI, Arazzo, overlays, reference docs) — gr"},{"name":"get_api_artifacts","description":"One API's artifacts grouped by type (by_type_counts is the full summary); pass `type` to scope the list to one type (synonym-aware: MCP matches MCPServer), incl"},{"name":"get_openapi","description":"An API's primary OpenAPI reference (url) — the top agent intent; set include=[\"content\"] to inline the spec body."},{"name":"get_provider_onboarding","description":"A getting-started view for a provider — website, portal, signup, docs, authentication, base URLs, and first steps assembled from its registered links."},{"name":"find_similar_providers","description":"Providers similar to a given one (alternatives) by shared tags, areas, industry, region, and artifact coverage. Products under the same owner (a sister, not a r"},{"name":"find_similar_apis","description":"APIs similar to a given one (\"more like this\") by shared tags."},{"name":"get_industry_leaders","description":"UNDERSTANDING — Top-rated providers in an industry vertical. Priced B1 (single-entity synthesis) — $0.01 per call under pay-as-you-go; included in Understanding"},{"name":"get_region_leaders","description":"UNDERSTANDING — Top-rated providers in a region. Priced B1 (single-entity synthesis) — $0.01 per call under pay-as-you-go; included in Understanding and Influen"},{"name":"get_country_leaders","description":"UNDERSTANDING — Top-rated providers in one country. Membership is derived and partial, so read the ranking as \"the best of what we have placed there\", not a nat"},{"name":"get_area_leaders","description":"UNDERSTANDING — Top-rated providers in a curated API Evangelist area. 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Returns 202 with a token and the hosts it will be checked against: publish it as a DNS TXT record, or as a file at "},{"name":"generate_artifact","description":"INFLUENCE — REQUEST an artifact you are being marked down for not having: apis-json, agent-card, mcp (one tool per operation you already publish), arazzo, rules"},{"name":"submit_artifact","description":"INFLUENCE — tell us about an artifact you publish, rather than waiting for us to find it. Returns 202; a person fetches it, checks it and re-runs the pipeline a"},{"name":"correct_facts","description":"INFLUENCE — propose corrections to what we say about you: name, description, url, industries, tags. Returns 202 and is applied by a person — an API that let an "},{"name":"dispute_finding","description":"INFLUENCE — \"you say we lack X, here it is.\" Send the claim in words and a URL that evidences it. 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Use get_provider_estate(slug) to go th"},{"name":"get_provider_estate","description":"Which corporate estate a provider belongs to, if any. Answers 200 with estate:null when the provider stands alone — that is a measured absence, not a missing re"},{"name":"find_regions","description":"Browse geographic regions; sort by provider/API count. Returns the 18 regions themselves. The collection also holds region x industry crossover pages (nordics-h"},{"name":"get_region","description":"One region: metadata + a top sample of its member providers (ranked, with the total). Use find_providers?region=slug for the full list, or view=full here. Resul"},{"name":"find_countries","description":"Browse the country dimension — the finest of the four place taxonomies, and the one a buyer usually names (\"who is in Germany\"). Peer to find_industries / find_"},{"name":"get_country","description":"One country: metadata, counts, and a top sample of member providers (with the total). Use find_providers?country=slug for the full ranked list, or view=full her"},{"name":"find_areas","description":"Browse the API Evangelist areas taxonomy (authentication, webhooks, payments, …) — curated, scored provider indexes. Search by text; sort by provider count."},{"name":"get_area","description":"One area: metadata, its dedicated site link, and a top sample of member providers (with the total). Use find_providers?area=slug for the full list, or view=full"},{"name":"find_regulations","description":"Browse the laws, statutes and accreditations the catalog tracks, each joined to the countries, regions and industries it binds. Filter by scope=horizontal to ge"},{"name":"get_regulation","description":"One regulation: what it is, its jurisdiction and scope, a link to the law itself, and reaches[] — the country, region and industry cohorts this regime binds. Us"},{"name":"find_extensions","description":"Browse every OpenAPI `x-` specification extension harvested across the catalog, with the provenance the OpenAPI Initiative registry does not carry: who publishe"},{"name":"get_extension","description":"One OpenAPI specification extension: its publishers, occurrence and document counts, where it appears, and the value shapes observed. CHECK is_api_evangelist BE"},{"name":"find_ratings","description":"Ranked ratings leaderboard — filter by band, score range, trend, or facet threshold. Sort by composite (default), delta (biggest gainers), or any quality facet "},{"name":"get_provider_rating","description":"One provider's full rating breakdown (composite, band, trend, six facets). Priced B1 (single-entity synthesis) — $0.01 per call under pay-as-you-go; included in"},{"name":"find_cohorts","description":"START HERE for market-level questions. Every scored population of providers in the catalog — tags, industries, regions, areas and VC portfolios — as one browsab"},{"name":"get_cohort","description":"One cohort: its identity, its population, and the full member roster with each provider's Kin Score and agent readiness. Understanding plan. The analysis parts "},{"name":"find_tag_groups","description":"START HERE for capability-map questions. The 1,500+ tag groups the catalog computes — sets of tags that demonstrably travel together across providers (Cards, Lo"},{"name":"get_tag_group","description":"One tag group: its member tags and the full provider roster resolved from the catalog, each with Kin Score and agent readiness. Filter the roster by industry, r"},{"name":"tag_group_tags","description":"The member tags of one tag group, each joined to its catalog record — provider count, api count, tag quality band and composite. Use it to see what a group is a"},{"name":"cohort_stats","description":"UNDERSTANDING — the DISTRIBUTION for a whole market: Kin Score mean/median/min/max/stdev, agent-readiness spread, band split, per-facet averages, and artifact a"},{"name":"cohort_rankings","description":"UNDERSTANDING — the leaderboard for a market, on TWO axes: rank by Kin Score composite AND rank by agent readiness. The two orders differ, and the gap between a"},{"name":"cohort_scores","description":"UNDERSTANDING — facet-level scores for every member of a cohort, each with the cohort average and the delta against it. A 60 in governance means nothing until y"},{"name":"find_operations","description":"UNDERSTANDING — CATALOG-WIDE operation search: which providers expose a path matching your terms. \"Who has a POST /refunds\" had no answer before this — tags are"},{"name":"deprecated_operations","description":"UNDERSTANDING — every provider publishing at least one operation marked deprecated in its own OpenAPI, ranked by how many. The lifecycle view of the catalog: 8,"},{"name":"cohort_history","description":"UNDERSTANDING — the SET-LEVEL time series: how a whole market's Kin Score and agent readiness moved, build by build. There was a per-provider series and a whole"},{"name":"cohort_failures","description":"UNDERSTANDING — what a whole market gets WRONG: the agent-readiness checks its members most commonly fail, ranked by what fixing each would move the cohort mean"},{"name":"cohort_capabilities","description":"UNDERSTANDING — what every member of a cohort actually publishes: artifact counts by type plus the agent-readiness dimensions each one satisfies. The capability"},{"name":"compare_cohorts","description":"UNDERSTANDING — two markets side by side on one rubric: \"is US payments further along than UK banking?\" Returns both distributions plus the deltas on score, age"},{"name":"get_provider_operations","description":"Every operation a provider exposes, across all of its OpenAPIs — method, path, operationId, summary, which API it belongs to, and whether it is deprecated. The "},{"name":"get_provider_tools","description":"Every MCP tool a provider ships, with the operation each one wraps and its auth. Reports provenance per tool: `first-party` means the provider publishes that se"},{"name":"get_provider_schema","description":"Every JSON Schema a provider publishes — the data shapes their API works in, in one list, without walking their artifacts. Free."},{"name":"get_provider_facets","description":"UNDERSTANDING — one provider's score broken into its facets (discoverability, contract quality, governance, operational transparency, developer ergonomics, comm"},{"name":"get_agent_readiness","description":"EXPLORE — the agent-readiness dimensions and standalone score for ONE provider (spec presence, MCP server, auth clarity, idempotency, error semantics, rate-limi"},{"name":"find_agent_readiness","description":"UNDERSTANDING — the agent-readiness leaderboard across the whole catalog. Rank providers by agent readiness, and filter to those that DO satisfy (has) or do NOT"},{"name":"agent_readiness_dimensions","description":"UNDERSTANDING — diffusion: for each agent-readiness dimension, how many scored providers satisfy it, out of how many, as a share. The denominator every \"the age"},{"name":"find_capabilities","description":"START HERE for \"what can a business do with these APIs\". The business-capability model — 333 top-level capabilities across 28 industries — with how many catalog"},{"name":"get_capability","description":"One business capability: its definition, its sub-capabilities, the external authorities it cites, and WHICH catalog providers reach it with their ratings. Accep"},{"name":"get_capability_edges","description":"UNDERSTANDING — the evidence behind a capability. Every edge that lands on it: the provider, the tag, the exact OpenAPI file, a calibrated confidence, and the Q"},{"name":"get_provider_business_capabilities","description":"UNDERSTANDING — what ONE vendor's published APIs let a business DO, rolled up by capability, with the tag-level evidence under each. Answers \"what is this vendo"},{"name":"get_provider_capabilities","description":"What one provider publishes, counted by artifact type, with the agent dimensions it satisfies. Free — it is a fact about their own public surface. NOTE: this is"},{"name":"get_provider_evidence","description":"How a provider's score was established, part by part: first-party (they published it), verified (we fetched and confirmed it), or derived (we inferred it). Free"},{"name":"get_rating_rubric","description":"UNDERSTANDING — the rubric: bands, facet weights, trend thresholds, so an agent can interpret any score. Moved behind the paywall with the ratings data on 2026-"},{"name":"find_artifacts","description":"Find artifacts of ANY one type across the catalog — the cross-type entry point. Each type also has a dedicated find_<type> tool (find_mcp, find_rules, find_scop"},{"name":"compare_providers","description":"UNDERSTANDING — Compare 2+ providers side by side: composite/band, per-facet leaders, and an artifact-coverage matrix. Priced B2 (cross-catalog synthesis) — $0."},{"name":"gap_analysis","description":"UNDERSTANDING — For each provider: high-value artifacts it lacks (MCP, Arazzo, Rules, Skills…), what its peers commonly publish but it lacks, and its score vs t"},{"name":"whats_changed","description":"UNDERSTANDING — What changed in the catalog since a date: providers added/updated, plus rating movement measured FROM THAT DATE — each provider's current score "},{"name":"recommend_stack","description":"Design an API stack — the best-rated catalog provider per capability, assembled into a stack. The Understanding preview is the top pick per capability; the full"},{"name":"get_provider_apis","description":"Every API one provider publishes, as a page you can filter — the provider's own catalog rather than the whole network's. Prefer this over find_apis with a `prov"},{"name":"get_provider_artifacts","description":"Every artifact a provider publishes — provider-level (MCP, security, scopes, rules, agentic-access) and per-API (OpenAPI, Arazzo, overlays, reference docs) — gr"},{"name":"get_api_artifacts","description":"One API's artifacts grouped by type (by_type_counts is the full summary); pass `type` to scope the list to one type (synonym-aware: MCP matches MCPServer), incl"},{"name":"get_openapi","description":"An API's primary OpenAPI reference (url) — the top agent intent; set include=[\"content\"] to inline the spec body."},{"name":"get_provider_onboarding","description":"A getting-started view for a provider — website, portal, signup, docs, authentication, base URLs, and first steps assembled from its registered links."},{"name":"find_similar_providers","description":"Providers similar to a given one (alternatives) by shared tags, areas, industry, region, and artifact coverage. Products under the same owner (a sister, not a r"},{"name":"find_similar_apis","description":"APIs similar to a given one (\"more like this\") by shared tags."},{"name":"get_industry_leaders","description":"UNDERSTANDING — Top-rated providers in an industry vertical. Priced B1 (single-entity synthesis) — $0.01 per call under pay-as-you-go; included in Understanding"},{"name":"get_region_leaders","description":"UNDERSTANDING — Top-rated providers in a region. Priced B1 (single-entity synthesis) — $0.01 per call under pay-as-you-go; included in Understanding and Influen"},{"name":"get_country_leaders","description":"UNDERSTANDING — Top-rated providers in one country. Membership is derived and partial, so read the ranking as \"the best of what we have placed there\", not a nat"},{"name":"get_area_leaders","description":"UNDERSTANDING — Top-rated providers in a curated API Evangelist area. Priced B1 (single-entity synthesis) — $0.01 per call under pay-as-you-go; included in Unde"},{"name":"get_rating_history","description":"UNDERSTANDING — A provider's REAL score time series: one point per scored build (composite + agent readiness on each date), plus a summary of the movement over "},{"name":"find_rating_movers","description":"UNDERSTANDING — The biggest rating movers (up and down) since the previous scoring build. Priced per result — $0.005 per request plus $0.0002 per record returne"},{"name":"story_leads","description":"OWNER — The weekly \"what's worth writing\" rollup: ranked story leads from the demand map crossed with rating movement — unmet demand (searched, no result), rise"},{"name":"what_can_i_fix","description":"INFLUENCE — the ranked, gated punch list for one provider you own. Every agent-readiness check with points still on the table (exact — these are real per-check "},{"name":"readiness_gates","description":"INFLUENCE — what blocks the next agent-readiness band, GATES BEFORE POINTS. Some bands are unreachable on score alone: agent-native requires idempotency AND a s"},{"name":"simulate_fixes","description":"INFLUENCE — project a set of fixes onto a provider's agent-readiness score and band before doing the work. Re-applies the band gate to the PROJECTED state, so i"},{"name":"claim_listing","description":"INFLUENCE — ask to claim a listing as yours. Returns 202 with a token and the hosts it will be checked against: publish it as a DNS TXT record, or as a file at "},{"name":"generate_artifact","description":"INFLUENCE — REQUEST an artifact you are being marked down for not having: apis-json, agent-card, mcp (one tool per operation you already publish), arazzo, rules"},{"name":"submit_artifact","description":"INFLUENCE — tell us about an artifact you publish, rather than waiting for us to find it. Returns 202; a person fetches it, checks it and re-runs the pipeline a"},{"name":"correct_facts","description":"INFLUENCE — propose corrections to what we say about you: name, description, url, industries, tags. Returns 202 and is applied by a person — an API that let an "},{"name":"dispute_finding","description":"INFLUENCE — \"you say we lack X, here it is.\" Send the claim in words and a URL that evidences it. Returns 202; a person fetches your evidence, checks it against"},{"name":"set_visibility","description":"INFLUENCE — ask to be shown less, or not at all. `restricted` keeps a name, a description and a link to your own site, unrated and out of every ranked view; `de"},{"name":"watch_listing","description":"INFLUENCE — be told when a listing you care about moves: score changes, band changes, agent-band changes, or a check closing. REQUIRES a destination: `contact` "},{"name":"list_watches","description":"INFLUENCE — the listings you are watching, with the events registered for each and when you started. The read half of watch_listing: call it before registering "},{"name":"unwatch_listing","description":"INFLUENCE — stop watching a listing. Takes effect immediately and removes the registration outright; there is no paused state. Removing a watch that was never r"},{"name":"request_check","description":"INFLUENCE — ask APIs.io to (re)check something. Use it when a listing is wrong or stale, when a score looks incorrect, or to get a company profiled that is not "},{"name":"check_status","description":"INFLUENCE — the status of a check request by id: queued, in_review, running, done, rejected or needs_info, with any notes shared by the reviewer. The id identif"},{"name":"find_agents","description":"FREE, no account — the A2A agent registry: agents that registered THEMSELVES by serving an agent card and calling register_agent. Each row carries the card URL,"},{"name":"register_agent","description":"FREE, no account — register yourself in the A2A agent registry. Serve an agent card at /.well-known/agent-card.json on a host you control, then call this with i"},{"name":"report_gap","description":"FREE, no account — tell the catalog what you looked for and could not find. The consumer door (roadmap#166): a gap report is how the catalog learns what to add "},{"name":"my_checks","description":"INFLUENCE — the check requests you filed, newest first. Requires a key or login — an anonymous caller has no identity to scope a list to, and should read a sing"},{"name":"export_dataset","description":"LICENCE (sold on the Influence plan) — the WHOLE dataset, not a 100-row page: `ratings` (every rated provider with facets, trend, rubric + provenance), `provide"},{"name":"industry_gap_analysis","description":"UNDERSTANDING — Valuable artifact types (MCP, Arazzo, Rules, Skills…) commonly missing across a whole industry — where the vertical is under-served. Priced B2 ("},{"name":"export_stack","description":"UNDERSTANDING — Export a designed capability stack as an adoptable APIs.json document (with an Arazzo hint) the team can commit. Priced B3 (bulk export) — $0.00"},{"name":"insights_overview","description":"UNDERSTANDING — the Insights root: how many companies are profiled, over how many quarters, and the top investment dimensions across the whole set. Read this FI"},{"name":"find_company_insights","description":"Browse profiled companies (Fortune 1000) by name or industry; ranked by overall technology-readiness signal. `industry` takes an insights industry NAME from ins"},{"name":"insights_dimensions","description":"Cross-section ranking of the 40 tracked investment dimensions (AI, cloud, governance, security, …) by how many profiled companies show signal. Understanding pla"},{"name":"insights_adoption","description":"Services, tools, or standards ranked by how many companies adopt them across the profiled set. Understanding plan. Priced B2 (cross-catalog synthesis) — $0.05 p"},{"name":"insights_industries","description":"UNDERSTANDING — the demand-side industry rollup: the sectors the profiled companies fall into. Each row carries TWO counts and they answer different questions: "},{"name":"get_company_insight","description":"UNDERSTANDING — Full demand-side profile for one company: 40-dimension readiness scores, adopted stack, and per-quarter history. Priced B2 (cross-catalog synthe"}],"toolCount":141,"toolsHash":"380adba6ac2941aa22e7ca72d3dd5f0fa92b7860bbb229de4e1f4a8b56321da1","serverName":"apis.io","capabilities":["tools","resources","prompts"],"serverVersion":"1.3.0","protocolVersion":"2025-06-18"}},{"at":"2026-10-09T18:26:43.925Z","kind":"mcp_initialize","ok":true,"httpStatus":200,"latencyMs":153,"error":null,"detail":{"tools":[{"name":"apis_io_search","description":"START HERE. Federated overview of the APIs.io catalog for a query: the top matching APIs, providers, AND tags in one call, each with its total match count. Filt"},{"name":"get_prices","description":"What one call costs on the pay-as-you-go plan, by cost band. FREE — and deliberately so: an agent that learns a price only when it is refused has already been r"},{"name":"get_playground_apis","description":"Curated APIs that are SAFE TO EXPERIMENT WITH — no key (or an instant, free, self-serve key), no cost, and no real-world side effects. Free, and deliberately so"},{"name":"find_apis","description":"Paginated, sortable list of APIs across providers — filter by tag, provider, artifact type, industry, region, or rating band. Matching is LEXICAL: `q` searches "},{"name":"get_api","description":"Full detail for one API by aid (provider:api-slug); set include=[\"content\"] to inline artifact bodies. Results carry `next`: the sub-resources that exist for th"},{"name":"find_providers","description":"Paginated, sortable list of providers — filter by text, tag, artifact type, industry, region, rating band, access model (pricing/onboarding/try_now/public), or "},{"name":"get_provider","description":"Full detail for one provider: profile, rating, and the APIs it publishes. The heavy `collections` and `common` sections are omitted by default (their counts are"},{"name":"find_tags","description":"Paginated, sortable list of tags in the taxonomy. Filter by `axis` to separate MARKETS (a business someone is in) from CAPABILITIES (the name of a resource in s"},{"name":"get_tag","description":"One tag: its metadata, neighbor tags, and a top sample of its providers and APIs (with totals). `provider_count` counts companies that classify THEMSELVES here;"},{"name":"find_industries","description":"Browse industry verticals; sort by provider/API count."},{"name":"get_industry","description":"One industry: metadata + a top sample of its member providers (ranked, with the total). Use find_providers?industry=slug for the full list, or view=full here. R"},{"name":"find_estates","description":"Browse corporate estates — one COMPANY whose API surface is spread across many provider records (Amazon 237, Salesforce 27, Cisco 37). Ranked by member count. U"},{"name":"get_estate","description":"One estate: the owning provider, the full member roster with per-member API counts and bands, and the estate-wide rating. Use get_provider_estate(slug) to go th"},{"name":"get_provider_estate","description":"Which corporate estate a provider belongs to, if any. Answers 200 with estate:null when the provider stands alone — that is a measured absence, not a missing re"},{"name":"find_regions","description":"Browse geographic regions; sort by provider/API count. Returns the 18 regions themselves. The collection also holds region x industry crossover pages (nordics-h"},{"name":"get_region","description":"One region: metadata + a top sample of its member providers (ranked, with the total). Use find_providers?region=slug for the full list, or view=full here. Resul"},{"name":"find_countries","description":"Browse the country dimension — the finest of the four place taxonomies, and the one a buyer usually names (\"who is in Germany\"). Peer to find_industries / find_"},{"name":"get_country","description":"One country: metadata, counts, and a top sample of member providers (with the total). Use find_providers?country=slug for the full ranked list, or view=full her"},{"name":"find_areas","description":"Browse the API Evangelist areas taxonomy (authentication, webhooks, payments, …) — curated, scored provider indexes. Search by text; sort by provider count."},{"name":"get_area","description":"One area: metadata, its dedicated site link, and a top sample of member providers (with the total). Use find_providers?area=slug for the full list, or view=full"},{"name":"find_regulations","description":"Browse the laws, statutes and accreditations the catalog tracks, each joined to the countries, regions and industries it binds. Filter by scope=horizontal to ge"},{"name":"get_regulation","description":"One regulation: what it is, its jurisdiction and scope, a link to the law itself, and reaches[] — the country, region and industry cohorts this regime binds. Us"},{"name":"find_extensions","description":"Browse every OpenAPI `x-` specification extension harvested across the catalog, with the provenance the OpenAPI Initiative registry does not carry: who publishe"},{"name":"get_extension","description":"One OpenAPI specification extension: its publishers, occurrence and document counts, where it appears, and the value shapes observed. CHECK is_api_evangelist BE"},{"name":"find_ratings","description":"Ranked ratings leaderboard — filter by band, score range, trend, or facet threshold. Sort by composite (default), delta (biggest gainers), or any quality facet "},{"name":"get_provider_rating","description":"One provider's full rating breakdown (composite, band, trend, six facets). Priced B1 (single-entity synthesis) — $0.01 per call under pay-as-you-go; included in"},{"name":"find_cohorts","description":"START HERE for market-level questions. Every scored population of providers in the catalog — tags, industries, regions, areas and VC portfolios — as one browsab"},{"name":"get_cohort","description":"One cohort: its identity, its population, and the full member roster with each provider's Kin Score and agent readiness. Understanding plan. The analysis parts "},{"name":"find_tag_groups","description":"START HERE for capability-map questions. The 1,500+ tag groups the catalog computes — sets of tags that demonstrably travel together across providers (Cards, Lo"},{"name":"get_tag_group","description":"One tag group: its member tags and the full provider roster resolved from the catalog, each with Kin Score and agent readiness. Filter the roster by industry, r"},{"name":"tag_group_tags","description":"The member tags of one tag group, each joined to its catalog record — provider count, api count, tag quality band and composite. Use it to see what a group is a"},{"name":"cohort_stats","description":"UNDERSTANDING — the DISTRIBUTION for a whole market: Kin Score mean/median/min/max/stdev, agent-readiness spread, band split, per-facet averages, and artifact a"},{"name":"cohort_rankings","description":"UNDERSTANDING — the leaderboard for a market, on TWO axes: rank by Kin Score composite AND rank by agent readiness. The two orders differ, and the gap between a"},{"name":"cohort_scores","description":"UNDERSTANDING — facet-level scores for every member of a cohort, each with the cohort average and the delta against it. A 60 in governance means nothing until y"},{"name":"find_operations","description":"UNDERSTANDING — CATALOG-WIDE operation search: which providers expose a path matching your terms. \"Who has a POST /refunds\" had no answer before this — tags are"},{"name":"deprecated_operations","description":"UNDERSTANDING — every provider publishing at least one operation marked deprecated in its own OpenAPI, ranked by how many. The lifecycle view of the catalog: 8,"},{"name":"cohort_history","description":"UNDERSTANDING — the SET-LEVEL time series: how a whole market's Kin Score and agent readiness moved, build by build. There was a per-provider series and a whole"},{"name":"cohort_failures","description":"UNDERSTANDING — what a whole market gets WRONG: the agent-readiness checks its members most commonly fail, ranked by what fixing each would move the cohort mean"},{"name":"cohort_capabilities","description":"UNDERSTANDING — what every member of a cohort actually publishes: artifact counts by type plus the agent-readiness dimensions each one satisfies. The capability"},{"name":"compare_cohorts","description":"UNDERSTANDING — two markets side by side on one rubric: \"is US payments further along than UK banking?\" Returns both distributions plus the deltas on score, age"},{"name":"get_provider_operations","description":"Every operation a provider exposes, across all of its OpenAPIs — method, path, operationId, summary, which API it belongs to, and whether it is deprecated. The "},{"name":"get_provider_tools","description":"Every MCP tool a provider ships, with the operation each one wraps and its auth. Reports provenance per tool: `first-party` means the provider publishes that se"},{"name":"get_provider_schema","description":"Every JSON Schema a provider publishes — the data shapes their API works in, in one list, without walking their artifacts. Free."},{"name":"get_provider_facets","description":"UNDERSTANDING — one provider's score broken into its facets (discoverability, contract quality, governance, operational transparency, developer ergonomics, comm"},{"name":"get_agent_readiness","description":"EXPLORE — the agent-readiness dimensions and standalone score for ONE provider (spec presence, MCP server, auth clarity, idempotency, error semantics, rate-limi"},{"name":"find_agent_readiness","description":"UNDERSTANDING — the agent-readiness leaderboard across the whole catalog. Rank providers by agent readiness, and filter to those that DO satisfy (has) or do NOT"},{"name":"agent_readiness_dimensions","description":"UNDERSTANDING — diffusion: for each agent-readiness dimension, how many scored providers satisfy it, out of how many, as a share. The denominator every \"the age"},{"name":"find_capabilities","description":"START HERE for \"what can a business do with these APIs\". The business-capability model — 333 top-level capabilities across 28 industries — with how many catalog"},{"name":"get_capability","description":"One business capability: its definition, its sub-capabilities, the external authorities it cites, and WHICH catalog providers reach it with their ratings. Accep"},{"name":"get_capability_edges","description":"UNDERSTANDING — the evidence behind a capability. Every edge that lands on it: the provider, the tag, the exact OpenAPI file, a calibrated confidence, and the Q"},{"name":"get_provider_business_capabilities","description":"UNDERSTANDING — what ONE vendor's published APIs let a business DO, rolled up by capability, with the tag-level evidence under each. Answers \"what is this vendo"},{"name":"get_provider_capabilities","description":"What one provider publishes, counted by artifact type, with the agent dimensions it satisfies. Free — it is a fact about their own public surface. NOTE: this is"},{"name":"get_provider_evidence","description":"How a provider's score was established, part by part: first-party (they published it), verified (we fetched and confirmed it), or derived (we inferred it). Free"},{"name":"get_rating_rubric","description":"UNDERSTANDING — the rubric: bands, facet weights, trend thresholds, so an agent can interpret any score. Moved behind the paywall with the ratings data on 2026-"},{"name":"find_artifacts","description":"Find artifacts of ANY one type across the catalog — the cross-type entry point. Each type also has a dedicated find_<type> tool (find_mcp, find_rules, find_scop"},{"name":"compare_providers","description":"UNDERSTANDING — Compare 2+ providers side by side: composite/band, per-facet leaders, and an artifact-coverage matrix. Priced B2 (cross-catalog synthesis) — $0."},{"name":"gap_analysis","description":"UNDERSTANDING — For each provider: high-value artifacts it lacks (MCP, Arazzo, Rules, Skills…), what its peers commonly publish but it lacks, and its score vs t"},{"name":"whats_changed","description":"UNDERSTANDING — What changed in the catalog since a date: providers added/updated, plus rating movement measured FROM THAT DATE — each provider's current score "},{"name":"recommend_stack","description":"Design an API stack — the best-rated catalog provider per capability, assembled into a stack. The Understanding preview is the top pick per capability; the full"},{"name":"get_provider_apis","description":"Every API one provider publishes, as a page you can filter — the provider's own catalog rather than the whole network's. Prefer this over find_apis with a `prov"},{"name":"get_provider_artifacts","description":"Every artifact a provider publishes — provider-level (MCP, security, scopes, rules, agentic-access) and per-API (OpenAPI, Arazzo, overlays, reference docs) — gr"},{"name":"get_api_artifacts","description":"One API's artifacts grouped by type (by_type_counts is the full summary); pass `type` to scope the list to one type (synonym-aware: MCP matches MCPServer), incl"},{"name":"get_openapi","description":"An API's primary OpenAPI reference (url) — the top agent intent; set include=[\"content\"] to inline the spec body."},{"name":"get_provider_onboarding","description":"A getting-started view for a provider — website, portal, signup, docs, authentication, base URLs, and first steps assembled from its registered links."},{"name":"find_similar_providers","description":"Providers similar to a given one (alternatives) by shared tags, areas, industry, region, and artifact coverage. Products under the same owner (a sister, not a r"},{"name":"find_similar_apis","description":"APIs similar to a given one (\"more like this\") by shared tags."},{"name":"get_industry_leaders","description":"UNDERSTANDING — Top-rated providers in an industry vertical. Priced B1 (single-entity synthesis) — $0.01 per call under pay-as-you-go; included in Understanding"},{"name":"get_region_leaders","description":"UNDERSTANDING — Top-rated providers in a region. Priced B1 (single-entity synthesis) — $0.01 per call under pay-as-you-go; included in Understanding and Influen"},{"name":"get_country_leaders","description":"UNDERSTANDING — Top-rated providers in one country. Membership is derived and partial, so read the ranking as \"the best of what we have placed there\", not a nat"},{"name":"get_area_leaders","description":"UNDERSTANDING — Top-rated providers in a curated API Evangelist area. Priced B1 (single-entity synthesis) — $0.01 per call under pay-as-you-go; included in Unde"},{"name":"get_rating_history","description":"UNDERSTANDING — A provider's REAL score time series: one point per scored build (composite + agent readiness on each date), plus a summary of the movement over "},{"name":"find_rating_movers","description":"UNDERSTANDING — The biggest rating movers (up and down) since the previous scoring build. Priced per result — $0.005 per request plus $0.0002 per record returne"},{"name":"story_leads","description":"OWNER — The weekly \"what's worth writing\" rollup: ranked story leads from the demand map crossed with rating movement — unmet demand (searched, no result), rise"},{"name":"what_can_i_fix","description":"INFLUENCE — the ranked, gated punch list for one provider you own. 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Us"},{"name":"find_extensions","description":"Browse every OpenAPI `x-` specification extension harvested across the catalog, with the provenance the OpenAPI Initiative registry does not carry: who publishe"},{"name":"get_extension","description":"One OpenAPI specification extension: its publishers, occurrence and document counts, where it appears, and the value shapes observed. CHECK is_api_evangelist BE"},{"name":"find_ratings","description":"Ranked ratings leaderboard — filter by band, score range, trend, or facet threshold. Sort by composite (default), delta (biggest gainers), or any quality facet "},{"name":"get_provider_rating","description":"One provider's full rating breakdown (composite, band, trend, six facets). Priced B1 (single-entity synthesis) — $0.01 per call under pay-as-you-go; included in"},{"name":"find_cohorts","description":"START HERE for market-level questions. Every scored population of providers in the catalog — tags, industries, regions, areas and VC portfolios — as one browsab"},{"name":"get_cohort","description":"One cohort: its identity, its population, and the full member roster with each provider's Kin Score and agent readiness. Understanding plan. The analysis parts "},{"name":"find_tag_groups","description":"START HERE for capability-map questions. The 1,500+ tag groups the catalog computes — sets of tags that demonstrably travel together across providers (Cards, Lo"},{"name":"get_tag_group","description":"One tag group: its member tags and the full provider roster resolved from the catalog, each with Kin Score and agent readiness. Filter the roster by industry, r"},{"name":"tag_group_tags","description":"The member tags of one tag group, each joined to its catalog record — provider count, api count, tag quality band and composite. 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The "},{"name":"get_provider_tools","description":"Every MCP tool a provider ships, with the operation each one wraps and its auth. Reports provenance per tool: `first-party` means the provider publishes that se"},{"name":"get_provider_schema","description":"Every JSON Schema a provider publishes — the data shapes their API works in, in one list, without walking their artifacts. Free."},{"name":"get_provider_facets","description":"UNDERSTANDING — one provider's score broken into its facets (discoverability, contract quality, governance, operational transparency, developer ergonomics, comm"},{"name":"get_agent_readiness","description":"EXPLORE — the agent-readiness dimensions and standalone score for ONE provider (spec presence, MCP server, auth clarity, idempotency, error semantics, rate-limi"},{"name":"find_agent_readiness","description":"UNDERSTANDING — the agent-readiness leaderboard across the whole catalog. 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Prefer this over find_apis with a `prov"},{"name":"get_provider_artifacts","description":"Every artifact a provider publishes — provider-level (MCP, security, scopes, rules, agentic-access) and per-API (OpenAPI, Arazzo, overlays, reference docs) — gr"},{"name":"get_api_artifacts","description":"One API's artifacts grouped by type (by_type_counts is the full summary); pass `type` to scope the list to one type (synonym-aware: MCP matches MCPServer), incl"},{"name":"get_openapi","description":"An API's primary OpenAPI reference (url) — the top agent intent; set include=[\"content\"] to inline the spec body."},{"name":"get_provider_onboarding","description":"A getting-started view for a provider — website, portal, signup, docs, authentication, base URLs, and first steps assembled from its registered links."},{"name":"find_similar_providers","description":"Providers similar to a given one (alternatives) by shared tags, areas, industry, region, and artifact coverage. Products under the same owner (a sister, not a r"},{"name":"find_similar_apis","description":"APIs similar to a given one (\"more like this\") by shared tags."},{"name":"get_industry_leaders","description":"UNDERSTANDING — Top-rated providers in an industry vertical. Priced B1 (single-entity synthesis) — $0.01 per call under pay-as-you-go; included in Understanding"},{"name":"get_region_leaders","description":"UNDERSTANDING — Top-rated providers in a region. Priced B1 (single-entity synthesis) — $0.01 per call under pay-as-you-go; included in Understanding and Influen"},{"name":"get_country_leaders","description":"UNDERSTANDING — Top-rated providers in one country. Membership is derived and partial, so read the ranking as \"the best of what we have placed there\", not a nat"},{"name":"get_area_leaders","description":"UNDERSTANDING — Top-rated providers in a curated API Evangelist area. 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Returns 202 with a token and the hosts it will be checked against: publish it as a DNS TXT record, or as a file at "},{"name":"generate_artifact","description":"INFLUENCE — REQUEST an artifact you are being marked down for not having: apis-json, agent-card, mcp (one tool per operation you already publish), arazzo, rules"},{"name":"submit_artifact","description":"INFLUENCE — tell us about an artifact you publish, rather than waiting for us to find it. Returns 202; a person fetches it, checks it and re-runs the pipeline a"},{"name":"correct_facts","description":"INFLUENCE — propose corrections to what we say about you: name, description, url, industries, tags. Returns 202 and is applied by a person — an API that let an "},{"name":"dispute_finding","description":"INFLUENCE — \"you say we lack X, here it is.\" Send the claim in words and a URL that evidences it. 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Use get_provider_estate(slug) to go th"},{"name":"get_provider_estate","description":"Which corporate estate a provider belongs to, if any. Answers 200 with estate:null when the provider stands alone — that is a measured absence, not a missing re"},{"name":"find_regions","description":"Browse geographic regions; sort by provider/API count. Returns the 18 regions themselves. The collection also holds region x industry crossover pages (nordics-h"},{"name":"get_region","description":"One region: metadata + a top sample of its member providers (ranked, with the total). Use find_providers?region=slug for the full list, or view=full here. Resul"},{"name":"find_countries","description":"Browse the country dimension — the finest of the four place taxonomies, and the one a buyer usually names (\"who is in Germany\"). Peer to find_industries / find_"},{"name":"get_country","description":"One country: metadata, counts, and a top sample of member providers (with the total). Use find_providers?country=slug for the full ranked list, or view=full her"},{"name":"find_areas","description":"Browse the API Evangelist areas taxonomy (authentication, webhooks, payments, …) — curated, scored provider indexes. Search by text; sort by provider count."},{"name":"get_area","description":"One area: metadata, its dedicated site link, and a top sample of member providers (with the total). Use find_providers?area=slug for the full list, or view=full"},{"name":"find_regulations","description":"Browse the laws, statutes and accreditations the catalog tracks, each joined to the countries, regions and industries it binds. Filter by scope=horizontal to ge"},{"name":"get_regulation","description":"One regulation: what it is, its jurisdiction and scope, a link to the law itself, and reaches[] — the country, region and industry cohorts this regime binds. Us"},{"name":"find_extensions","description":"Browse every OpenAPI `x-` specification extension harvested across the catalog, with the provenance the OpenAPI Initiative registry does not carry: who publishe"},{"name":"get_extension","description":"One OpenAPI specification extension: its publishers, occurrence and document counts, where it appears, and the value shapes observed. CHECK is_api_evangelist BE"},{"name":"find_ratings","description":"Ranked ratings leaderboard — filter by band, score range, trend, or facet threshold. Sort by composite (default), delta (biggest gainers), or any quality facet "},{"name":"get_provider_rating","description":"One provider's full rating breakdown (composite, band, trend, six facets). Priced B1 (single-entity synthesis) — $0.01 per call under pay-as-you-go; included in"},{"name":"find_cohorts","description":"START HERE for market-level questions. Every scored population of providers in the catalog — tags, industries, regions, areas and VC portfolios — as one browsab"},{"name":"get_cohort","description":"One cohort: its identity, its population, and the full member roster with each provider's Kin Score and agent readiness. Understanding plan. The analysis parts "},{"name":"find_tag_groups","description":"START HERE for capability-map questions. The 1,500+ tag groups the catalog computes — sets of tags that demonstrably travel together across providers (Cards, Lo"},{"name":"get_tag_group","description":"One tag group: its member tags and the full provider roster resolved from the catalog, each with Kin Score and agent readiness. Filter the roster by industry, r"},{"name":"tag_group_tags","description":"The member tags of one tag group, each joined to its catalog record — provider count, api count, tag quality band and composite. Use it to see what a group is a"},{"name":"cohort_stats","description":"UNDERSTANDING — the DISTRIBUTION for a whole market: Kin Score mean/median/min/max/stdev, agent-readiness spread, band split, per-facet averages, and artifact a"},{"name":"cohort_rankings","description":"UNDERSTANDING — the leaderboard for a market, on TWO axes: rank by Kin Score composite AND rank by agent readiness. The two orders differ, and the gap between a"},{"name":"cohort_scores","description":"UNDERSTANDING — facet-level scores for every member of a cohort, each with the cohort average and the delta against it. A 60 in governance means nothing until y"},{"name":"find_operations","description":"UNDERSTANDING — CATALOG-WIDE operation search: which providers expose a path matching your terms. \"Who has a POST /refunds\" had no answer before this — tags are"},{"name":"deprecated_operations","description":"UNDERSTANDING — every provider publishing at least one operation marked deprecated in its own OpenAPI, ranked by how many. The lifecycle view of the catalog: 8,"},{"name":"cohort_history","description":"UNDERSTANDING — the SET-LEVEL time series: how a whole market's Kin Score and agent readiness moved, build by build. There was a per-provider series and a whole"},{"name":"cohort_failures","description":"UNDERSTANDING — what a whole market gets WRONG: the agent-readiness checks its members most commonly fail, ranked by what fixing each would move the cohort mean"},{"name":"cohort_capabilities","description":"UNDERSTANDING — what every member of a cohort actually publishes: artifact counts by type plus the agent-readiness dimensions each one satisfies. The capability"},{"name":"compare_cohorts","description":"UNDERSTANDING — two markets side by side on one rubric: \"is US payments further along than UK banking?\" Returns both distributions plus the deltas on score, age"},{"name":"get_provider_operations","description":"Every operation a provider exposes, across all of its OpenAPIs — method, path, operationId, summary, which API it belongs to, and whether it is deprecated. The "},{"name":"get_provider_tools","description":"Every MCP tool a provider ships, with the operation each one wraps and its auth. Reports provenance per tool: `first-party` means the provider publishes that se"},{"name":"get_provider_schema","description":"Every JSON Schema a provider publishes — the data shapes their API works in, in one list, without walking their artifacts. Free."},{"name":"get_provider_facets","description":"UNDERSTANDING — one provider's score broken into its facets (discoverability, contract quality, governance, operational transparency, developer ergonomics, comm"},{"name":"get_agent_readiness","description":"EXPLORE — the agent-readiness dimensions and standalone score for ONE provider (spec presence, MCP server, auth clarity, idempotency, error semantics, rate-limi"},{"name":"find_agent_readiness","description":"UNDERSTANDING — the agent-readiness leaderboard across the whole catalog. Rank providers by agent readiness, and filter to those that DO satisfy (has) or do NOT"},{"name":"agent_readiness_dimensions","description":"UNDERSTANDING — diffusion: for each agent-readiness dimension, how many scored providers satisfy it, out of how many, as a share. The denominator every \"the age"},{"name":"find_capabilities","description":"START HERE for \"what can a business do with these APIs\". The business-capability model — 333 top-level capabilities across 28 industries — with how many catalog"},{"name":"get_capability","description":"One business capability: its definition, its sub-capabilities, the external authorities it cites, and WHICH catalog providers reach it with their ratings. Accep"},{"name":"get_capability_edges","description":"UNDERSTANDING — the evidence behind a capability. Every edge that lands on it: the provider, the tag, the exact OpenAPI file, a calibrated confidence, and the Q"},{"name":"get_provider_business_capabilities","description":"UNDERSTANDING — what ONE vendor's published APIs let a business DO, rolled up by capability, with the tag-level evidence under each. Answers \"what is this vendo"},{"name":"get_provider_capabilities","description":"What one provider publishes, counted by artifact type, with the agent dimensions it satisfies. Free — it is a fact about their own public surface. NOTE: this is"},{"name":"get_provider_evidence","description":"How a provider's score was established, part by part: first-party (they published it), verified (we fetched and confirmed it), or derived (we inferred it). Free"},{"name":"get_rating_rubric","description":"UNDERSTANDING — the rubric: bands, facet weights, trend thresholds, so an agent can interpret any score. Moved behind the paywall with the ratings data on 2026-"},{"name":"find_artifacts","description":"Find artifacts of ANY one type across the catalog — the cross-type entry point. Each type also has a dedicated find_<type> tool (find_mcp, find_rules, find_scop"},{"name":"compare_providers","description":"UNDERSTANDING — Compare 2+ providers side by side: composite/band, per-facet leaders, and an artifact-coverage matrix. Priced B2 (cross-catalog synthesis) — $0."},{"name":"gap_analysis","description":"UNDERSTANDING — For each provider: high-value artifacts it lacks (MCP, Arazzo, Rules, Skills…), what its peers commonly publish but it lacks, and its score vs t"},{"name":"whats_changed","description":"UNDERSTANDING — What changed in the catalog since a date: providers added/updated, plus rating movement measured FROM THAT DATE — each provider's current score "},{"name":"recommend_stack","description":"Design an API stack — the best-rated catalog provider per capability, assembled into a stack. The Understanding preview is the top pick per capability; the full"},{"name":"get_provider_apis","description":"Every API one provider publishes, as a page you can filter — the provider's own catalog rather than the whole network's. Prefer this over find_apis with a `prov"},{"name":"get_provider_artifacts","description":"Every artifact a provider publishes — provider-level (MCP, security, scopes, rules, agentic-access) and per-API (OpenAPI, Arazzo, overlays, reference docs) — gr"},{"name":"get_api_artifacts","description":"One API's artifacts grouped by type (by_type_counts is the full summary); pass `type` to scope the list to one type (synonym-aware: MCP matches MCPServer), incl"},{"name":"get_openapi","description":"An API's primary OpenAPI reference (url) — the top agent intent; set include=[\"content\"] to inline the spec body."},{"name":"get_provider_onboarding","description":"A getting-started view for a provider — website, portal, signup, docs, authentication, base URLs, and first steps assembled from its registered links."},{"name":"find_similar_providers","description":"Providers similar to a given one (alternatives) by shared tags, areas, industry, region, and artifact coverage. Products under the same owner (a sister, not a r"},{"name":"find_similar_apis","description":"APIs similar to a given one (\"more like this\") by shared tags."},{"name":"get_industry_leaders","description":"UNDERSTANDING — Top-rated providers in an industry vertical. Priced B1 (single-entity synthesis) — $0.01 per call under pay-as-you-go; included in Understanding"},{"name":"get_region_leaders","description":"UNDERSTANDING — Top-rated providers in a region. Priced B1 (single-entity synthesis) — $0.01 per call under pay-as-you-go; included in Understanding and Influen"},{"name":"get_country_leaders","description":"UNDERSTANDING — Top-rated providers in one country. Membership is derived and partial, so read the ranking as \"the best of what we have placed there\", not a nat"},{"name":"get_area_leaders","description":"UNDERSTANDING — Top-rated providers in a curated API Evangelist area. Priced B1 (single-entity synthesis) — $0.01 per call under pay-as-you-go; included in Unde"},{"name":"get_rating_history","description":"UNDERSTANDING — A provider's REAL score time series: one point per scored build (composite + agent readiness on each date), plus a summary of the movement over "},{"name":"find_rating_movers","description":"UNDERSTANDING — The biggest rating movers (up and down) since the previous scoring build. Priced per result — $0.005 per request plus $0.0002 per record returne"},{"name":"story_leads","description":"OWNER — The weekly \"what's worth writing\" rollup: ranked story leads from the demand map crossed with rating movement — unmet demand (searched, no result), rise"},{"name":"what_can_i_fix","description":"INFLUENCE — the ranked, gated punch list for one provider you own. Every agent-readiness check with points still on the table (exact — these are real per-check "},{"name":"readiness_gates","description":"INFLUENCE — what blocks the next agent-readiness band, GATES BEFORE POINTS. Some bands are unreachable on score alone: agent-native requires idempotency AND a s"},{"name":"simulate_fixes","description":"INFLUENCE — project a set of fixes onto a provider's agent-readiness score and band before doing the work. Re-applies the band gate to the PROJECTED state, so i"},{"name":"claim_listing","description":"INFLUENCE — ask to claim a listing as yours. Returns 202 with a token and the hosts it will be checked against: publish it as a DNS TXT record, or as a file at "},{"name":"generate_artifact","description":"INFLUENCE — REQUEST an artifact you are being marked down for not having: apis-json, agent-card, mcp (one tool per operation you already publish), arazzo, rules"},{"name":"submit_artifact","description":"INFLUENCE — tell us about an artifact you publish, rather than waiting for us to find it. Returns 202; a person fetches it, checks it and re-runs the pipeline a"},{"name":"correct_facts","description":"INFLUENCE — propose corrections to what we say about you: name, description, url, industries, tags. Returns 202 and is applied by a person — an API that let an "},{"name":"dispute_finding","description":"INFLUENCE — \"you say we lack X, here it is.\" Send the claim in words and a URL that evidences it. Returns 202; a person fetches your evidence, checks it against"},{"name":"set_visibility","description":"INFLUENCE — ask to be shown less, or not at all. `restricted` keeps a name, a description and a link to your own site, unrated and out of every ranked view; `de"},{"name":"watch_listing","description":"INFLUENCE — be told when a listing you care about moves: score changes, band changes, agent-band changes, or a check closing. REQUIRES a destination: `contact` "},{"name":"list_watches","description":"INFLUENCE — the listings you are watching, with the events registered for each and when you started. The read half of watch_listing: call it before registering "},{"name":"unwatch_listing","description":"INFLUENCE — stop watching a listing. Takes effect immediately and removes the registration outright; there is no paused state. Removing a watch that was never r"},{"name":"request_check","description":"INFLUENCE — ask APIs.io to (re)check something. Use it when a listing is wrong or stale, when a score looks incorrect, or to get a company profiled that is not "},{"name":"check_status","description":"INFLUENCE — the status of a check request by id: queued, in_review, running, done, rejected or needs_info, with any notes shared by the reviewer. The id identif"},{"name":"find_agents","description":"FREE, no account — the A2A agent registry: agents that registered THEMSELVES by serving an agent card and calling register_agent. Each row carries the card URL,"},{"name":"register_agent","description":"FREE, no account — register yourself in the A2A agent registry. Serve an agent card at /.well-known/agent-card.json on a host you control, then call this with i"},{"name":"report_gap","description":"FREE, no account — tell the catalog what you looked for and could not find. The consumer door (roadmap#166): a gap report is how the catalog learns what to add "},{"name":"my_checks","description":"INFLUENCE — the check requests you filed, newest first. Requires a key or login — an anonymous caller has no identity to scope a list to, and should read a sing"},{"name":"export_dataset","description":"LICENCE (sold on the Influence plan) — the WHOLE dataset, not a 100-row page: `ratings` (every rated provider with facets, trend, rubric + provenance), `provide"},{"name":"industry_gap_analysis","description":"UNDERSTANDING — Valuable artifact types (MCP, Arazzo, Rules, Skills…) commonly missing across a whole industry — where the vertical is under-served. Priced B2 ("},{"name":"export_stack","description":"UNDERSTANDING — Export a designed capability stack as an adoptable APIs.json document (with an Arazzo hint) the team can commit. Priced B3 (bulk export) — $0.00"},{"name":"insights_overview","description":"UNDERSTANDING — the Insights root: how many companies are profiled, over how many quarters, and the top investment dimensions across the whole set. Read this FI"},{"name":"find_company_insights","description":"Browse profiled companies (Fortune 1000) by name or industry; ranked by overall technology-readiness signal. `industry` takes an insights industry NAME from ins"},{"name":"insights_dimensions","description":"Cross-section ranking of the 40 tracked investment dimensions (AI, cloud, governance, security, …) by how many profiled companies show signal. Understanding pla"},{"name":"insights_adoption","description":"Services, tools, or standards ranked by how many companies adopt them across the profiled set. Understanding plan. Priced B2 (cross-catalog synthesis) — $0.05 p"},{"name":"insights_industries","description":"UNDERSTANDING — the demand-side industry rollup: the sectors the profiled companies fall into. Each row carries TWO counts and they answer different questions: "},{"name":"get_company_insight","description":"UNDERSTANDING — Full demand-side profile for one company: 40-dimension readiness scores, adopted stack, and per-quarter history. Priced B2 (cross-catalog synthe"}],"toolCount":141,"toolsHash":"380adba6ac2941aa22e7ca72d3dd5f0fa92b7860bbb229de4e1f4a8b56321da1","serverName":"apis.io","capabilities":["tools","resources","prompts"],"serverVersion":"1.3.0","protocolVersion":"2025-06-18"}},{"at":"2026-10-08T22:24:27.398Z","kind":"mcp_initialize","ok":true,"httpStatus":200,"latencyMs":147,"error":null,"detail":{"tools":[{"name":"apis_io_search","description":"START HERE. Federated overview of the APIs.io catalog for a query: the top matching APIs, providers, AND tags in one call, each with its total match count. Filt"},{"name":"get_prices","description":"What one call costs on the pay-as-you-go plan, by cost band. FREE — and deliberately so: an agent that learns a price only when it is refused has already been r"},{"name":"get_playground_apis","description":"Curated APIs that are SAFE TO EXPERIMENT WITH — no key (or an instant, free, self-serve key), no cost, and no real-world side effects. Free, and deliberately so"},{"name":"find_apis","description":"Paginated, sortable list of APIs across providers — filter by tag, provider, artifact type, industry, region, or rating band. Matching is LEXICAL: `q` searches "},{"name":"get_api","description":"Full detail for one API by aid (provider:api-slug); set include=[\"content\"] to inline artifact bodies. Results carry `next`: the sub-resources that exist for th"},{"name":"find_providers","description":"Paginated, sortable list of providers — filter by text, tag, artifact type, industry, region, rating band, access model (pricing/onboarding/try_now/public), or "},{"name":"get_provider","description":"Full detail for one provider: profile, rating, and the APIs it publishes. The heavy `collections` and `common` sections are omitted by default (their counts are"},{"name":"find_tags","description":"Paginated, sortable list of tags in the taxonomy. Filter by `axis` to separate MARKETS (a business someone is in) from CAPABILITIES (the name of a resource in s"},{"name":"get_tag","description":"One tag: its metadata, neighbor tags, and a top sample of its providers and APIs (with totals). `provider_count` counts companies that classify THEMSELVES here;"},{"name":"find_industries","description":"Browse industry verticals; sort by provider/API count."},{"name":"get_industry","description":"One industry: metadata + a top sample of its member providers (ranked, with the total). Use find_providers?industry=slug for the full list, or view=full here. R"},{"name":"find_estates","description":"Browse corporate estates — one COMPANY whose API surface is spread across many provider records (Amazon 237, Salesforce 27, Cisco 37). Ranked by member count. U"},{"name":"get_estate","description":"One estate: the owning provider, the full member roster with per-member API counts and bands, and the estate-wide rating. Use get_provider_estate(slug) to go th"},{"name":"get_provider_estate","description":"Which corporate estate a provider belongs to, if any. Answers 200 with estate:null when the provider stands alone — that is a measured absence, not a missing re"},{"name":"find_regions","description":"Browse geographic regions; sort by provider/API count. Returns the 18 regions themselves. The collection also holds region x industry crossover pages (nordics-h"},{"name":"get_region","description":"One region: metadata + a top sample of its member providers (ranked, with the total). Use find_providers?region=slug for the full list, or view=full here. Resul"},{"name":"find_countries","description":"Browse the country dimension — the finest of the four place taxonomies, and the one a buyer usually names (\"who is in Germany\"). Peer to find_industries / find_"},{"name":"get_country","description":"One country: metadata, counts, and a top sample of member providers (with the total). Use find_providers?country=slug for the full ranked list, or view=full her"},{"name":"find_areas","description":"Browse the API Evangelist areas taxonomy (authentication, webhooks, payments, …) — curated, scored provider indexes. Search by text; sort by provider count."},{"name":"get_area","description":"One area: metadata, its dedicated site link, and a top sample of member providers (with the total). Use find_providers?area=slug for the full list, or view=full"},{"name":"find_regulations","description":"Browse the laws, statutes and accreditations the catalog tracks, each joined to the countries, regions and industries it binds. Filter by scope=horizontal to ge"},{"name":"get_regulation","description":"One regulation: what it is, its jurisdiction and scope, a link to the law itself, and reaches[] — the country, region and industry cohorts this regime binds. Us"},{"name":"find_extensions","description":"Browse every OpenAPI `x-` specification extension harvested across the catalog, with the provenance the OpenAPI Initiative registry does not carry: who publishe"},{"name":"get_extension","description":"One OpenAPI specification extension: its publishers, occurrence and document counts, where it appears, and the value shapes observed. CHECK is_api_evangelist BE"},{"name":"find_ratings","description":"Ranked ratings leaderboard — filter by band, score range, trend, or facet threshold. Sort by composite (default), delta (biggest gainers), or any quality facet "},{"name":"get_provider_rating","description":"One provider's full rating breakdown (composite, band, trend, six facets). Priced B1 (single-entity synthesis) — $0.01 per call under pay-as-you-go; included in"},{"name":"find_cohorts","description":"START HERE for market-level questions. Every scored population of providers in the catalog — tags, industries, regions, areas and VC portfolios — as one browsab"},{"name":"get_cohort","description":"One cohort: its identity, its population, and the full member roster with each provider's Kin Score and agent readiness. Understanding plan. The analysis parts "},{"name":"find_tag_groups","description":"START HERE for capability-map questions. The 1,500+ tag groups the catalog computes — sets of tags that demonstrably travel together across providers (Cards, Lo"},{"name":"get_tag_group","description":"One tag group: its member tags and the full provider roster resolved from the catalog, each with Kin Score and agent readiness. Filter the roster by industry, r"},{"name":"tag_group_tags","description":"The member tags of one tag group, each joined to its catalog record — provider count, api count, tag quality band and composite. Use it to see what a group is a"},{"name":"cohort_stats","description":"UNDERSTANDING — the DISTRIBUTION for a whole market: Kin Score mean/median/min/max/stdev, agent-readiness spread, band split, per-facet averages, and artifact a"},{"name":"cohort_rankings","description":"UNDERSTANDING — the leaderboard for a market, on TWO axes: rank by Kin Score composite AND rank by agent readiness. The two orders differ, and the gap between a"},{"name":"cohort_scores","description":"UNDERSTANDING — facet-level scores for every member of a cohort, each with the cohort average and the delta against it. A 60 in governance means nothing until y"},{"name":"find_operations","description":"UNDERSTANDING — CATALOG-WIDE operation search: which providers expose a path matching your terms. \"Who has a POST /refunds\" had no answer before this — tags are"},{"name":"deprecated_operations","description":"UNDERSTANDING — every provider publishing at least one operation marked deprecated in its own OpenAPI, ranked by how many. The lifecycle view of the catalog: 8,"},{"name":"cohort_history","description":"UNDERSTANDING — the SET-LEVEL time series: how a whole market's Kin Score and agent readiness moved, build by build. There was a per-provider series and a whole"},{"name":"cohort_failures","description":"UNDERSTANDING — what a whole market gets WRONG: the agent-readiness checks its members most commonly fail, ranked by what fixing each would move the cohort mean"},{"name":"cohort_capabilities","description":"UNDERSTANDING — what every member of a cohort actually publishes: artifact counts by type plus the agent-readiness dimensions each one satisfies. The capability"},{"name":"compare_cohorts","description":"UNDERSTANDING — two markets side by side on one rubric: \"is US payments further along than UK banking?\" Returns both distributions plus the deltas on score, age"},{"name":"get_provider_operations","description":"Every operation a provider exposes, across all of its OpenAPIs — method, path, operationId, summary, which API it belongs to, and whether it is deprecated. The "},{"name":"get_provider_tools","description":"Every MCP tool a provider ships, with the operation each one wraps and its auth. Reports provenance per tool: `first-party` means the provider publishes that se"},{"name":"get_provider_schema","description":"Every JSON Schema a provider publishes — the data shapes their API works in, in one list, without walking their artifacts. Free."},{"name":"get_provider_facets","description":"UNDERSTANDING — one provider's score broken into its facets (discoverability, contract quality, governance, operational transparency, developer ergonomics, comm"},{"name":"get_agent_readiness","description":"EXPLORE — the agent-readiness dimensions and standalone score for ONE provider (spec presence, MCP server, auth clarity, idempotency, error semantics, rate-limi"},{"name":"find_agent_readiness","description":"UNDERSTANDING — the agent-readiness leaderboard across the whole catalog. Rank providers by agent readiness, and filter to those that DO satisfy (has) or do NOT"},{"name":"agent_readiness_dimensions","description":"UNDERSTANDING — diffusion: for each agent-readiness dimension, how many scored providers satisfy it, out of how many, as a share. The denominator every \"the age"},{"name":"find_capabilities","description":"START HERE for \"what can a business do with these APIs\". The business-capability model — 333 top-level capabilities across 28 industries — with how many catalog"},{"name":"get_capability","description":"One business capability: its definition, its sub-capabilities, the external authorities it cites, and WHICH catalog providers reach it with their ratings. Accep"},{"name":"get_capability_edges","description":"UNDERSTANDING — the evidence behind a capability. Every edge that lands on it: the provider, the tag, the exact OpenAPI file, a calibrated confidence, and the Q"},{"name":"get_provider_business_capabilities","description":"UNDERSTANDING — what ONE vendor's published APIs let a business DO, rolled up by capability, with the tag-level evidence under each. Answers \"what is this vendo"},{"name":"get_provider_capabilities","description":"What one provider publishes, counted by artifact type, with the agent dimensions it satisfies. Free — it is a fact about their own public surface. NOTE: this is"},{"name":"get_provider_evidence","description":"How a provider's score was established, part by part: first-party (they published it), verified (we fetched and confirmed it), or derived (we inferred it). Free"},{"name":"get_rating_rubric","description":"UNDERSTANDING — the rubric: bands, facet weights, trend thresholds, so an agent can interpret any score. Moved behind the paywall with the ratings data on 2026-"},{"name":"find_artifacts","description":"Find artifacts of ANY one type across the catalog — the cross-type entry point. Each type also has a dedicated find_<type> tool (find_mcp, find_rules, find_scop"},{"name":"compare_providers","description":"UNDERSTANDING — Compare 2+ providers side by side: composite/band, per-facet leaders, and an artifact-coverage matrix. Priced B2 (cross-catalog synthesis) — $0."},{"name":"gap_analysis","description":"UNDERSTANDING — For each provider: high-value artifacts it lacks (MCP, Arazzo, Rules, Skills…), what its peers commonly publish but it lacks, and its score vs t"},{"name":"whats_changed","description":"UNDERSTANDING — What changed in the catalog since a date: providers added/updated, plus rating movement measured FROM THAT DATE — each provider's current score "},{"name":"recommend_stack","description":"Design an API stack — the best-rated catalog provider per capability, assembled into a stack. The Understanding preview is the top pick per capability; the full"},{"name":"get_provider_apis","description":"Every API one provider publishes, as a page you can filter — the provider's own catalog rather than the whole network's. Prefer this over find_apis with a `prov"},{"name":"get_provider_artifacts","description":"Every artifact a provider publishes — provider-level (MCP, security, scopes, rules, agentic-access) and per-API (OpenAPI, Arazzo, overlays, reference docs) — gr"},{"name":"get_api_artifacts","description":"One API's artifacts grouped by type (by_type_counts is the full summary); pass `type` to scope the list to one type (synonym-aware: MCP matches MCPServer), incl"},{"name":"get_openapi","description":"An API's primary OpenAPI reference (url) — the top agent intent; set include=[\"content\"] to inline the spec body."},{"name":"get_provider_onboarding","description":"A getting-started view for a provider — website, portal, signup, docs, authentication, base URLs, and first steps assembled from its registered links."},{"name":"find_similar_providers","description":"Providers similar to a given one (alternatives) by shared tags, areas, industry, region, and artifact coverage. Products under the same owner (a sister, not a r"},{"name":"find_similar_apis","description":"APIs similar to a given one (\"more like this\") by shared tags."},{"name":"get_industry_leaders","description":"UNDERSTANDING — Top-rated providers in an industry vertical. Priced B1 (single-entity synthesis) — $0.01 per call under pay-as-you-go; included in Understanding"},{"name":"get_region_leaders","description":"UNDERSTANDING — Top-rated providers in a region. Priced B1 (single-entity synthesis) — $0.01 per call under pay-as-you-go; included in Understanding and Influen"},{"name":"get_country_leaders","description":"UNDERSTANDING — Top-rated providers in one country. Membership is derived and partial, so read the ranking as \"the best of what we have placed there\", not a nat"},{"name":"get_area_leaders","description":"UNDERSTANDING — Top-rated providers in a curated API Evangelist area. Priced B1 (single-entity synthesis) — $0.01 per call under pay-as-you-go; included in Unde"},{"name":"get_rating_history","description":"UNDERSTANDING — A provider's REAL score time series: one point per scored build (composite + agent readiness on each date), plus a summary of the movement over "},{"name":"find_rating_movers","description":"UNDERSTANDING — The biggest rating movers (up and down) since the previous scoring build. Priced per result — $0.005 per request plus $0.0002 per record returne"},{"name":"story_leads","description":"OWNER — The weekly \"what's worth writing\" rollup: ranked story leads from the demand map crossed with rating movement — unmet demand (searched, no result), rise"},{"name":"what_can_i_fix","description":"INFLUENCE — the ranked, gated punch list for one provider you own. 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Returns 202 with a token and the hosts it will be checked against: publish it as a DNS TXT record, or as a file at "},{"name":"generate_artifact","description":"INFLUENCE — REQUEST an artifact you are being marked down for not having: apis-json, agent-card, mcp (one tool per operation you already publish), arazzo, rules"},{"name":"submit_artifact","description":"INFLUENCE — tell us about an artifact you publish, rather than waiting for us to find it. Returns 202; a person fetches it, checks it and re-runs the pipeline a"},{"name":"correct_facts","description":"INFLUENCE — propose corrections to what we say about you: name, description, url, industries, tags. Returns 202 and is applied by a person — an API that let an "},{"name":"dispute_finding","description":"INFLUENCE — \"you say we lack X, here it is.\" Send the claim in words and a URL that evidences it. 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Federated overview of the APIs.io catalog for a query: the top matching APIs, providers, AND tags in one call, each with its total match count. Filt"},{"name":"get_prices","description":"What one call costs on the pay-as-you-go plan, by cost band. FREE — and deliberately so: an agent that learns a price only when it is refused has already been r"},{"name":"get_playground_apis","description":"Curated APIs that are SAFE TO EXPERIMENT WITH — no key (or an instant, free, self-serve key), no cost, and no real-world side effects. Free, and deliberately so"},{"name":"find_apis","description":"Paginated, sortable list of APIs across providers — filter by tag, provider, artifact type, industry, region, or rating band. Matching is LEXICAL: `q` searches "},{"name":"get_api","description":"Full detail for one API by aid (provider:api-slug); set include=[\"content\"] to inline artifact bodies. 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Filter by `axis` to separate MARKETS (a business someone is in) from CAPABILITIES (the name of a resource in s"},{"name":"get_tag","description":"One tag: its metadata, neighbor tags, and a top sample of its providers and APIs (with totals). `provider_count` counts companies that classify THEMSELVES here;"},{"name":"find_industries","description":"Browse industry verticals; sort by provider/API count."},{"name":"get_industry","description":"One industry: metadata + a top sample of its member providers (ranked, with the total). Use find_providers?industry=slug for the full list, or view=full here. R"},{"name":"find_estates","description":"Browse corporate estates — one COMPANY whose API surface is spread across many provider records (Amazon 237, Salesforce 27, Cisco 37). Ranked by member count. U"},{"name":"get_estate","description":"One estate: the owning provider, the full member roster with per-member API counts and bands, and the estate-wide rating. 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Use find_providers?country=slug for the full ranked list, or view=full her"},{"name":"find_areas","description":"Browse the API Evangelist areas taxonomy (authentication, webhooks, payments, …) — curated, scored provider indexes. Search by text; sort by provider count."},{"name":"get_area","description":"One area: metadata, its dedicated site link, and a top sample of member providers (with the total). Use find_providers?area=slug for the full list, or view=full"},{"name":"find_regulations","description":"Browse the laws, statutes and accreditations the catalog tracks, each joined to the countries, regions and industries it binds. Filter by scope=horizontal to ge"},{"name":"get_regulation","description":"One regulation: what it is, its jurisdiction and scope, a link to the law itself, and reaches[] — the country, region and industry cohorts this regime binds. Us"},{"name":"find_extensions","description":"Browse every OpenAPI `x-` specification extension harvested across the catalog, with the provenance the OpenAPI Initiative registry does not carry: who publishe"},{"name":"get_extension","description":"One OpenAPI specification extension: its publishers, occurrence and document counts, where it appears, and the value shapes observed. CHECK is_api_evangelist BE"},{"name":"find_ratings","description":"Ranked ratings leaderboard — filter by band, score range, trend, or facet threshold. Sort by composite (default), delta (biggest gainers), or any quality facet "},{"name":"get_provider_rating","description":"One provider's full rating breakdown (composite, band, trend, six facets). Priced B1 (single-entity synthesis) — $0.01 per call under pay-as-you-go; included in"},{"name":"find_cohorts","description":"START HERE for market-level questions. Every scored population of providers in the catalog — tags, industries, regions, areas and VC portfolios — as one browsab"},{"name":"get_cohort","description":"One cohort: its identity, its population, and the full member roster with each provider's Kin Score and agent readiness. Understanding plan. The analysis parts "},{"name":"find_tag_groups","description":"START HERE for capability-map questions. The 1,500+ tag groups the catalog computes — sets of tags that demonstrably travel together across providers (Cards, Lo"},{"name":"get_tag_group","description":"One tag group: its member tags and the full provider roster resolved from the catalog, each with Kin Score and agent readiness. Filter the roster by industry, r"},{"name":"tag_group_tags","description":"The member tags of one tag group, each joined to its catalog record — provider count, api count, tag quality band and composite. Use it to see what a group is a"},{"name":"cohort_stats","description":"UNDERSTANDING — the DISTRIBUTION for a whole market: Kin Score mean/median/min/max/stdev, agent-readiness spread, band split, per-facet averages, and artifact a"},{"name":"cohort_rankings","description":"UNDERSTANDING — the leaderboard for a market, on TWO axes: rank by Kin Score composite AND rank by agent readiness. The two orders differ, and the gap between a"},{"name":"cohort_scores","description":"UNDERSTANDING — facet-level scores for every member of a cohort, each with the cohort average and the delta against it. A 60 in governance means nothing until y"},{"name":"find_operations","description":"UNDERSTANDING — CATALOG-WIDE operation search: which providers expose a path matching your terms. \"Who has a POST /refunds\" had no answer before this — tags are"},{"name":"deprecated_operations","description":"UNDERSTANDING — every provider publishing at least one operation marked deprecated in its own OpenAPI, ranked by how many. The lifecycle view of the catalog: 8,"},{"name":"cohort_history","description":"UNDERSTANDING — the SET-LEVEL time series: how a whole market's Kin Score and agent readiness moved, build by build. There was a per-provider series and a whole"},{"name":"cohort_failures","description":"UNDERSTANDING — what a whole market gets WRONG: the agent-readiness checks its members most commonly fail, ranked by what fixing each would move the cohort mean"},{"name":"cohort_capabilities","description":"UNDERSTANDING — what every member of a cohort actually publishes: artifact counts by type plus the agent-readiness dimensions each one satisfies. The capability"},{"name":"compare_cohorts","description":"UNDERSTANDING — two markets side by side on one rubric: \"is US payments further along than UK banking?\" Returns both distributions plus the deltas on score, age"},{"name":"get_provider_operations","description":"Every operation a provider exposes, across all of its OpenAPIs — method, path, operationId, summary, which API it belongs to, and whether it is deprecated. The "},{"name":"get_provider_tools","description":"Every MCP tool a provider ships, with the operation each one wraps and its auth. Reports provenance per tool: `first-party` means the provider publishes that se"},{"name":"get_provider_schema","description":"Every JSON Schema a provider publishes — the data shapes their API works in, in one list, without walking their artifacts. Free."},{"name":"get_provider_facets","description":"UNDERSTANDING — one provider's score broken into its facets (discoverability, contract quality, governance, operational transparency, developer ergonomics, comm"},{"name":"get_agent_readiness","description":"EXPLORE — the agent-readiness dimensions and standalone score for ONE provider (spec presence, MCP server, auth clarity, idempotency, error semantics, rate-limi"},{"name":"find_agent_readiness","description":"UNDERSTANDING — the agent-readiness leaderboard across the whole catalog. Rank providers by agent readiness, and filter to those that DO satisfy (has) or do NOT"},{"name":"agent_readiness_dimensions","description":"UNDERSTANDING — diffusion: for each agent-readiness dimension, how many scored providers satisfy it, out of how many, as a share. The denominator every \"the age"},{"name":"find_capabilities","description":"START HERE for \"what can a business do with these APIs\". The business-capability model — 333 top-level capabilities across 28 industries — with how many catalog"},{"name":"get_capability","description":"One business capability: its definition, its sub-capabilities, the external authorities it cites, and WHICH catalog providers reach it with their ratings. Accep"},{"name":"get_capability_edges","description":"UNDERSTANDING — the evidence behind a capability. Every edge that lands on it: the provider, the tag, the exact OpenAPI file, a calibrated confidence, and the Q"},{"name":"get_provider_business_capabilities","description":"UNDERSTANDING — what ONE vendor's published APIs let a business DO, rolled up by capability, with the tag-level evidence under each. Answers \"what is this vendo"},{"name":"get_provider_capabilities","description":"What one provider publishes, counted by artifact type, with the agent dimensions it satisfies. Free — it is a fact about their own public surface. NOTE: this is"},{"name":"get_provider_evidence","description":"How a provider's score was established, part by part: first-party (they published it), verified (we fetched and confirmed it), or derived (we inferred it). Free"},{"name":"get_rating_rubric","description":"UNDERSTANDING — the rubric: bands, facet weights, trend thresholds, so an agent can interpret any score. Moved behind the paywall with the ratings data on 2026-"},{"name":"find_artifacts","description":"Find artifacts of ANY one type across the catalog — the cross-type entry point. Each type also has a dedicated find_<type> tool (find_mcp, find_rules, find_scop"},{"name":"compare_providers","description":"UNDERSTANDING — Compare 2+ providers side by side: composite/band, per-facet leaders, and an artifact-coverage matrix. Priced B2 (cross-catalog synthesis) — $0."},{"name":"gap_analysis","description":"UNDERSTANDING — For each provider: high-value artifacts it lacks (MCP, Arazzo, Rules, Skills…), what its peers commonly publish but it lacks, and its score vs t"},{"name":"whats_changed","description":"UNDERSTANDING — What changed in the catalog since a date: providers added/updated, plus rating movement measured FROM THAT DATE — each provider's current score "},{"name":"recommend_stack","description":"Design an API stack — the best-rated catalog provider per capability, assembled into a stack. The Understanding preview is the top pick per capability; the full"},{"name":"get_provider_apis","description":"Every API one provider publishes, as a page you can filter — the provider's own catalog rather than the whole network's. Prefer this over find_apis with a `prov"},{"name":"get_provider_artifacts","description":"Every artifact a provider publishes — provider-level (MCP, security, scopes, rules, agentic-access) and per-API (OpenAPI, Arazzo, overlays, reference docs) — gr"},{"name":"get_api_artifacts","description":"One API's artifacts grouped by type (by_type_counts is the full summary); pass `type` to scope the list to one type (synonym-aware: MCP matches MCPServer), incl"},{"name":"get_openapi","description":"An API's primary OpenAPI reference (url) — the top agent intent; set include=[\"content\"] to inline the spec body."},{"name":"get_provider_onboarding","description":"A getting-started view for a provider — website, portal, signup, docs, authentication, base URLs, and first steps assembled from its registered links."},{"name":"find_similar_providers","description":"Providers similar to a given one (alternatives) by shared tags, areas, industry, region, and artifact coverage. Products under the same owner (a sister, not a r"},{"name":"find_similar_apis","description":"APIs similar to a given one (\"more like this\") by shared tags."},{"name":"get_industry_leaders","description":"UNDERSTANDING — Top-rated providers in an industry vertical. Priced B1 (single-entity synthesis) — $0.01 per call under pay-as-you-go; included in Understanding"},{"name":"get_region_leaders","description":"UNDERSTANDING — Top-rated providers in a region. Priced B1 (single-entity synthesis) — $0.01 per call under pay-as-you-go; included in Understanding and Influen"},{"name":"get_country_leaders","description":"UNDERSTANDING — Top-rated providers in one country. Membership is derived and partial, so read the ranking as \"the best of what we have placed there\", not a nat"},{"name":"get_area_leaders","description":"UNDERSTANDING — Top-rated providers in a curated API Evangelist area. Priced B1 (single-entity synthesis) — $0.01 per call under pay-as-you-go; included in Unde"},{"name":"get_rating_history","description":"UNDERSTANDING — A provider's REAL score time series: one point per scored build (composite + agent readiness on each date), plus a summary of the movement over "},{"name":"find_rating_movers","description":"UNDERSTANDING — The biggest rating movers (up and down) since the previous scoring build. Priced per result — $0.005 per request plus $0.0002 per record returne"},{"name":"story_leads","description":"OWNER — The weekly \"what's worth writing\" rollup: ranked story leads from the demand map crossed with rating movement — unmet demand (searched, no result), rise"},{"name":"what_can_i_fix","description":"INFLUENCE — the ranked, gated punch list for one provider you own. 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Returns 202 with a token and the hosts it will be checked against: publish it as a DNS TXT record, or as a file at "},{"name":"generate_artifact","description":"INFLUENCE — REQUEST an artifact you are being marked down for not having: apis-json, agent-card, mcp (one tool per operation you already publish), arazzo, rules"},{"name":"submit_artifact","description":"INFLUENCE — tell us about an artifact you publish, rather than waiting for us to find it. Returns 202; a person fetches it, checks it and re-runs the pipeline a"},{"name":"correct_facts","description":"INFLUENCE — propose corrections to what we say about you: name, description, url, industries, tags. Returns 202 and is applied by a person — an API that let an "},{"name":"dispute_finding","description":"INFLUENCE — \"you say we lack X, here it is.\" Send the claim in words and a URL that evidences it. 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Use it when a listing is wrong or stale, when a score looks incorrect, or to get a company profiled that is not "},{"name":"check_status","description":"INFLUENCE — the status of a check request by id: queued, in_review, running, done, rejected or needs_info, with any notes shared by the reviewer. The id identif"},{"name":"find_agents","description":"FREE, no account — the A2A agent registry: agents that registered THEMSELVES by serving an agent card and calling register_agent. Each row carries the card URL,"},{"name":"register_agent","description":"FREE, no account — register yourself in the A2A agent registry. Serve an agent card at /.well-known/agent-card.json on a host you control, then call this with i"},{"name":"report_gap","description":"FREE, no account — tell the catalog what you looked for and could not find. The consumer door (roadmap#166): a gap report is how the catalog learns what to add "},{"name":"my_checks","description":"INFLUENCE — the check requests you filed, newest first. Requires a key or login — an anonymous caller has no identity to scope a list to, and should read a sing"},{"name":"export_dataset","description":"LICENCE (sold on the Influence plan) — the WHOLE dataset, not a 100-row page: `ratings` (every rated provider with facets, trend, rubric + provenance), `provide"},{"name":"industry_gap_analysis","description":"UNDERSTANDING — Valuable artifact types (MCP, Arazzo, Rules, Skills…) commonly missing across a whole industry — where the vertical is under-served. Priced B2 ("},{"name":"export_stack","description":"UNDERSTANDING — Export a designed capability stack as an adoptable APIs.json document (with an Arazzo hint) the team can commit. 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Use get_provider_estate(slug) to go th"},{"name":"get_provider_estate","description":"Which corporate estate a provider belongs to, if any. Answers 200 with estate:null when the provider stands alone — that is a measured absence, not a missing re"},{"name":"find_regions","description":"Browse geographic regions; sort by provider/API count. Returns the 18 regions themselves. The collection also holds region x industry crossover pages (nordics-h"},{"name":"get_region","description":"One region: metadata + a top sample of its member providers (ranked, with the total). Use find_providers?region=slug for the full list, or view=full here. Resul"},{"name":"find_countries","description":"Browse the country dimension — the finest of the four place taxonomies, and the one a buyer usually names (\"who is in Germany\"). Peer to find_industries / find_"},{"name":"get_country","description":"One country: metadata, counts, and a top sample of member providers (with the total). Use find_providers?country=slug for the full ranked list, or view=full her"},{"name":"find_areas","description":"Browse the API Evangelist areas taxonomy (authentication, webhooks, payments, …) — curated, scored provider indexes. Search by text; sort by provider count."},{"name":"get_area","description":"One area: metadata, its dedicated site link, and a top sample of member providers (with the total). Use find_providers?area=slug for the full list, or view=full"},{"name":"find_regulations","description":"Browse the laws, statutes and accreditations the catalog tracks, each joined to the countries, regions and industries it binds. Filter by scope=horizontal to ge"},{"name":"get_regulation","description":"One regulation: what it is, its jurisdiction and scope, a link to the law itself, and reaches[] — the country, region and industry cohorts this regime binds. Us"},{"name":"find_extensions","description":"Browse every OpenAPI `x-` specification extension harvested across the catalog, with the provenance the OpenAPI Initiative registry does not carry: who publishe"},{"name":"get_extension","description":"One OpenAPI specification extension: its publishers, occurrence and document counts, where it appears, and the value shapes observed. CHECK is_api_evangelist BE"},{"name":"find_ratings","description":"Ranked ratings leaderboard — filter by band, score range, trend, or facet threshold. Sort by composite (default), delta (biggest gainers), or any quality facet "},{"name":"get_provider_rating","description":"One provider's full rating breakdown (composite, band, trend, six facets). Priced B1 (single-entity synthesis) — $0.01 per call under pay-as-you-go; included in"},{"name":"find_cohorts","description":"START HERE for market-level questions. Every scored population of providers in the catalog — tags, industries, regions, areas and VC portfolios — as one browsab"},{"name":"get_cohort","description":"One cohort: its identity, its population, and the full member roster with each provider's Kin Score and agent readiness. Understanding plan. The analysis parts "},{"name":"find_tag_groups","description":"START HERE for capability-map questions. The 1,500+ tag groups the catalog computes — sets of tags that demonstrably travel together across providers (Cards, Lo"},{"name":"get_tag_group","description":"One tag group: its member tags and the full provider roster resolved from the catalog, each with Kin Score and agent readiness. Filter the roster by industry, r"},{"name":"tag_group_tags","description":"The member tags of one tag group, each joined to its catalog record — provider count, api count, tag quality band and composite. Use it to see what a group is a"},{"name":"cohort_stats","description":"UNDERSTANDING — the DISTRIBUTION for a whole market: Kin Score mean/median/min/max/stdev, agent-readiness spread, band split, per-facet averages, and artifact a"},{"name":"cohort_rankings","description":"UNDERSTANDING — the leaderboard for a market, on TWO axes: rank by Kin Score composite AND rank by agent readiness. The two orders differ, and the gap between a"},{"name":"cohort_scores","description":"UNDERSTANDING — facet-level scores for every member of a cohort, each with the cohort average and the delta against it. A 60 in governance means nothing until y"},{"name":"find_operations","description":"UNDERSTANDING — CATALOG-WIDE operation search: which providers expose a path matching your terms. \"Who has a POST /refunds\" had no answer before this — tags are"},{"name":"deprecated_operations","description":"UNDERSTANDING — every provider publishing at least one operation marked deprecated in its own OpenAPI, ranked by how many. The lifecycle view of the catalog: 8,"},{"name":"cohort_history","description":"UNDERSTANDING — the SET-LEVEL time series: how a whole market's Kin Score and agent readiness moved, build by build. There was a per-provider series and a whole"},{"name":"cohort_failures","description":"UNDERSTANDING — what a whole market gets WRONG: the agent-readiness checks its members most commonly fail, ranked by what fixing each would move the cohort mean"},{"name":"cohort_capabilities","description":"UNDERSTANDING — what every member of a cohort actually publishes: artifact counts by type plus the agent-readiness dimensions each one satisfies. The capability"},{"name":"compare_cohorts","description":"UNDERSTANDING — two markets side by side on one rubric: \"is US payments further along than UK banking?\" Returns both distributions plus the deltas on score, age"},{"name":"get_provider_operations","description":"Every operation a provider exposes, across all of its OpenAPIs — method, path, operationId, summary, which API it belongs to, and whether it is deprecated. The "},{"name":"get_provider_tools","description":"Every MCP tool a provider ships, with the operation each one wraps and its auth. Reports provenance per tool: `first-party` means the provider publishes that se"},{"name":"get_provider_schema","description":"Every JSON Schema a provider publishes — the data shapes their API works in, in one list, without walking their artifacts. Free."},{"name":"get_provider_facets","description":"UNDERSTANDING — one provider's score broken into its facets (discoverability, contract quality, governance, operational transparency, developer ergonomics, comm"},{"name":"get_agent_readiness","description":"EXPLORE — the agent-readiness dimensions and standalone score for ONE provider (spec presence, MCP server, auth clarity, idempotency, error semantics, rate-limi"},{"name":"find_agent_readiness","description":"UNDERSTANDING — the agent-readiness leaderboard across the whole catalog. Rank providers by agent readiness, and filter to those that DO satisfy (has) or do NOT"},{"name":"agent_readiness_dimensions","description":"UNDERSTANDING — diffusion: for each agent-readiness dimension, how many scored providers satisfy it, out of how many, as a share. The denominator every \"the age"},{"name":"find_capabilities","description":"START HERE for \"what can a business do with these APIs\". The business-capability model — 333 top-level capabilities across 28 industries — with how many catalog"},{"name":"get_capability","description":"One business capability: its definition, its sub-capabilities, the external authorities it cites, and WHICH catalog providers reach it with their ratings. Accep"},{"name":"get_capability_edges","description":"UNDERSTANDING — the evidence behind a capability. Every edge that lands on it: the provider, the tag, the exact OpenAPI file, a calibrated confidence, and the Q"},{"name":"get_provider_business_capabilities","description":"UNDERSTANDING — what ONE vendor's published APIs let a business DO, rolled up by capability, with the tag-level evidence under each. Answers \"what is this vendo"},{"name":"get_provider_capabilities","description":"What one provider publishes, counted by artifact type, with the agent dimensions it satisfies. Free — it is a fact about their own public surface. NOTE: this is"},{"name":"get_provider_evidence","description":"How a provider's score was established, part by part: first-party (they published it), verified (we fetched and confirmed it), or derived (we inferred it). Free"},{"name":"get_rating_rubric","description":"UNDERSTANDING — the rubric: bands, facet weights, trend thresholds, so an agent can interpret any score. Moved behind the paywall with the ratings data on 2026-"},{"name":"find_artifacts","description":"Find artifacts of ANY one type across the catalog — the cross-type entry point. Each type also has a dedicated find_<type> tool (find_mcp, find_rules, find_scop"},{"name":"compare_providers","description":"UNDERSTANDING — Compare 2+ providers side by side: composite/band, per-facet leaders, and an artifact-coverage matrix. Priced B2 (cross-catalog synthesis) — $0."},{"name":"gap_analysis","description":"UNDERSTANDING — For each provider: high-value artifacts it lacks (MCP, Arazzo, Rules, Skills…), what its peers commonly publish but it lacks, and its score vs t"},{"name":"whats_changed","description":"UNDERSTANDING — What changed in the catalog since a date: providers added/updated, plus rating movement measured FROM THAT DATE — each provider's current score "},{"name":"recommend_stack","description":"Design an API stack — the best-rated catalog provider per capability, assembled into a stack. The Understanding preview is the top pick per capability; the full"},{"name":"get_provider_apis","description":"Every API one provider publishes, as a page you can filter — the provider's own catalog rather than the whole network's. Prefer this over find_apis with a `prov"},{"name":"get_provider_artifacts","description":"Every artifact a provider publishes — provider-level (MCP, security, scopes, rules, agentic-access) and per-API (OpenAPI, Arazzo, overlays, reference docs) — gr"},{"name":"get_api_artifacts","description":"One API's artifacts grouped by type (by_type_counts is the full summary); pass `type` to scope the list to one type (synonym-aware: MCP matches MCPServer), incl"},{"name":"get_openapi","description":"An API's primary OpenAPI reference (url) — the top agent intent; set include=[\"content\"] to inline the spec body."},{"name":"get_provider_onboarding","description":"A getting-started view for a provider — website, portal, signup, docs, authentication, base URLs, and first steps assembled from its registered links."},{"name":"find_similar_providers","description":"Providers similar to a given one (alternatives) by shared tags, areas, industry, region, and artifact coverage. Products under the same owner (a sister, not a r"},{"name":"find_similar_apis","description":"APIs similar to a given one (\"more like this\") by shared tags."},{"name":"get_industry_leaders","description":"UNDERSTANDING — Top-rated providers in an industry vertical. Priced B1 (single-entity synthesis) — $0.01 per call under pay-as-you-go; included in Understanding"},{"name":"get_region_leaders","description":"UNDERSTANDING — Top-rated providers in a region. Priced B1 (single-entity synthesis) — $0.01 per call under pay-as-you-go; included in Understanding and Influen"},{"name":"get_country_leaders","description":"UNDERSTANDING — Top-rated providers in one country. Membership is derived and partial, so read the ranking as \"the best of what we have placed there\", not a nat"},{"name":"get_area_leaders","description":"UNDERSTANDING — Top-rated providers in a curated API Evangelist area. Priced B1 (single-entity synthesis) — $0.01 per call under pay-as-you-go; included in Unde"},{"name":"get_rating_history","description":"UNDERSTANDING — A provider's REAL score time series: one point per scored build (composite + agent readiness on each date), plus a summary of the movement over "},{"name":"find_rating_movers","description":"UNDERSTANDING — The biggest rating movers (up and down) since the previous scoring build. Priced per result — $0.005 per request plus $0.0002 per record returne"},{"name":"story_leads","description":"OWNER — The weekly \"what's worth writing\" rollup: ranked story leads from the demand map crossed with rating movement — unmet demand (searched, no result), rise"},{"name":"what_can_i_fix","description":"INFLUENCE — the ranked, gated punch list for one provider you own. Every agent-readiness check with points still on the table (exact — these are real per-check "},{"name":"readiness_gates","description":"INFLUENCE — what blocks the next agent-readiness band, GATES BEFORE POINTS. Some bands are unreachable on score alone: agent-native requires idempotency AND a s"},{"name":"simulate_fixes","description":"INFLUENCE — project a set of fixes onto a provider's agent-readiness score and band before doing the work. Re-applies the band gate to the PROJECTED state, so i"},{"name":"claim_listing","description":"INFLUENCE — ask to claim a listing as yours. Returns 202 with a token and the hosts it will be checked against: publish it as a DNS TXT record, or as a file at "},{"name":"generate_artifact","description":"INFLUENCE — REQUEST an artifact you are being marked down for not having: apis-json, agent-card, mcp (one tool per operation you already publish), arazzo, rules"},{"name":"submit_artifact","description":"INFLUENCE — tell us about an artifact you publish, rather than waiting for us to find it. Returns 202; a person fetches it, checks it and re-runs the pipeline a"},{"name":"correct_facts","description":"INFLUENCE — propose corrections to what we say about you: name, description, url, industries, tags. Returns 202 and is applied by a person — an API that let an "},{"name":"dispute_finding","description":"INFLUENCE — \"you say we lack X, here it is.\" Send the claim in words and a URL that evidences it. Returns 202; a person fetches your evidence, checks it against"},{"name":"set_visibility","description":"INFLUENCE — ask to be shown less, or not at all. `restricted` keeps a name, a description and a link to your own site, unrated and out of every ranked view; `de"},{"name":"watch_listing","description":"INFLUENCE — be told when a listing you care about moves: score changes, band changes, agent-band changes, or a check closing. REQUIRES a destination: `contact` "},{"name":"list_watches","description":"INFLUENCE — the listings you are watching, with the events registered for each and when you started. The read half of watch_listing: call it before registering "},{"name":"unwatch_listing","description":"INFLUENCE — stop watching a listing. Takes effect immediately and removes the registration outright; there is no paused state. Removing a watch that was never r"},{"name":"request_check","description":"INFLUENCE — ask APIs.io to (re)check something. Use it when a listing is wrong or stale, when a score looks incorrect, or to get a company profiled that is not "},{"name":"check_status","description":"INFLUENCE — the status of a check request by id: queued, in_review, running, done, rejected or needs_info, with any notes shared by the reviewer. The id identif"},{"name":"find_agents","description":"FREE, no account — the A2A agent registry: agents that registered THEMSELVES by serving an agent card and calling register_agent. Each row carries the card URL,"},{"name":"register_agent","description":"FREE, no account — register yourself in the A2A agent registry. Serve an agent card at /.well-known/agent-card.json on a host you control, then call this with i"},{"name":"report_gap","description":"FREE, no account — tell the catalog what you looked for and could not find. The consumer door (roadmap#166): a gap report is how the catalog learns what to add "},{"name":"my_checks","description":"INFLUENCE — the check requests you filed, newest first. Requires a key or login — an anonymous caller has no identity to scope a list to, and should read a sing"},{"name":"export_dataset","description":"LICENCE (sold on the Influence plan) — the WHOLE dataset, not a 100-row page: `ratings` (every rated provider with facets, trend, rubric + provenance), `provide"},{"name":"industry_gap_analysis","description":"UNDERSTANDING — Valuable artifact types (MCP, Arazzo, Rules, Skills…) commonly missing across a whole industry — where the vertical is under-served. Priced B2 ("},{"name":"export_stack","description":"UNDERSTANDING — Export a designed capability stack as an adoptable APIs.json document (with an Arazzo hint) the team can commit. Priced B3 (bulk export) — $0.00"},{"name":"insights_overview","description":"UNDERSTANDING — the Insights root: how many companies are profiled, over how many quarters, and the top investment dimensions across the whole set. Read this FI"},{"name":"find_company_insights","description":"Browse profiled companies (Fortune 1000) by name or industry; ranked by overall technology-readiness signal. `industry` takes an insights industry NAME from ins"},{"name":"insights_dimensions","description":"Cross-section ranking of the 40 tracked investment dimensions (AI, cloud, governance, security, …) by how many profiled companies show signal. Understanding pla"},{"name":"insights_adoption","description":"Services, tools, or standards ranked by how many companies adopt them across the profiled set. Understanding plan. Priced B2 (cross-catalog synthesis) — $0.05 p"},{"name":"insights_industries","description":"UNDERSTANDING — the demand-side industry rollup: the sectors the profiled companies fall into. Each row carries TWO counts and they answer different questions: "},{"name":"get_company_insight","description":"UNDERSTANDING — Full demand-side profile for one company: 40-dimension readiness scores, adopted stack, and per-quarter history. Priced B2 (cross-catalog 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