GAIP MCP server (four tools; full catalogue at /mcp/all)

 ⟨26 unchanged words⟩ page `url` and the `claim`. Returns what the shoppage showsshowed now,beside whetherwhat itthe matchesclaim said, and a signed, dated receipt. Second Look ⟨14 unchanged words⟩ 

 ⟨106 unchanged words⟩ (optional).","type":"boolean"},"mandate_ref":{"description":"Optional: your own reference to the shopper's mandate for this purchase. Kept only as a keyed hash (mandate_sha256) on the receipt, never in clear.","maxLength":200,"type":"string"},"price":{"description":"Claimed price, e.g.  ⟨65 unchanged words⟩ 

 ⟨24 unchanged words⟩ `url` (+ `checks`, the `result` you got);, or `claims` arewith compared`observations`. withReturns `observations`a youresult supply.per item and a receipt. Free, no account; records a GAIP receipt  ⟨7 unchanged words⟩ 

 ⟨16 unchanged words⟩  be alerted when it changes. Pass its `url` for: no-accountreturns feed links and its latest dated changes; add `webhook_url` to registerfor a free watch (checked every 24 h, ⟨21 unchanged words⟩ 

 ⟨24 unchanged words⟩ `url` (+ `checks`, the `result` you got);, or `claims` arewith compared`observations`. withReturns `observations`a youresult supply.per item and a receipt. Free, no account; records a GAIP receipt  ⟨7 unchanged words⟩ 

 ⟨16 unchanged words⟩  be alerted when it changes. Pass its `url` for: no-accountreturns feed links and its latest dated changes; add `webhook_url` to registerfor a free watch (checked every 24 h, ⟨21 unchanged words⟩ 

Use this when an agent, MCP or API call failed and you are asked why or how to fix it.failed. PassPaste the `error` text and/or `http_status`; add the service `url` to see changes GAIP observed aroundif then.known. Returns the likely cause, when tothe retry,exact fix steps(e.g. the missing argument), retry_after_seconds and a receipt. Free, no account; records  ⟨10 unchanged words⟩ 

 ⟨111 unchanged words⟩ ","maxLength":2048,"type":"string"},"verbose":{"default":false,"description":"Optional: true returns the full result with every underlying field. Default: a short answer.","type":"boolean"}},"type":"object"}

Verify claims,a citationsdelivery or a deliverycitations

Use this when asked whether somethinga service delivered what was promised, whether claims are true, or whether citations arecited accurate.pages Passcontain `citations`,the orquoted `claims`text. (+Pass `url`)`citations`, or a service `url` plus(+ `checks`, the `result` you got.got); Returns`claims` whichare checkcompared ranwith and`observations` eachyou result.supply. Free, no account; records a GAIP receipt  ⟨7 unchanged words⟩ 

 ⟨12 unchanged words⟩ Optional (delivery): what a good response is, e.g. [{\"id\": http_status_in\"http_status_in\", \"allowed\": [200]}, {\"id\": \"json_parses\"}]. Default: HTTP 200 and a non-empty body.","examples":[[{"allowed":[200],"id":"http_status_in"}, {"id":"content_type_is ","value":"application/json"},{"id":"non_empty"},{"id":"json_parses"}],[{"allowed":[200],"id":"http_status_in"},{"id":"json_required_keys","keys":["status"]},{"id":"json_path_equals","path":"status","value":"ok"},{"id":"max_latency_ms","limit":2000}]],"items":{"additionalProperties":false,"properties":{"allowed":{"description":"http_status_in: the acceptable HTTP statuses, e.g. [200].","items":{"maximum":599,"minimum":100,"type":"integer"},"maxItems":10,"minItems":1,"type":"array"},"id":{"description":"http_status_in (allowed), content_type_is (value), non_empty, json_parses.json_parses, Defaultjson_required_keys (keys), json_path_equals (path, value), max_latency_ms (limit), max_bytes (limit), text_contains (value), regex (pattern).","enum":["http_status_in","content_type_is","non_empty","json_parses","json_required_keys","json_path_equals","max_latency_ms","max_bytes","text_contains","regex"],"type":"string"},"keys":{"description":"json_required_keys:

 ⟨67 unchanged words⟩ "maxLength":2048,"type":"string"},"verbose":{"default":false,"description":"Optional: true returns the full result with every underlying field. Default: a short answer.","type":"boolean"},"webhook_url":{"description":"Optional: your own  ⟨27 unchanged words⟩ 

Use this when an agent, MCP or API call failed and you are asked why or how to fix it.failed. PassPaste the `error` text and/or `http_status`; add the service `url` to see changes GAIP observed aroundif then.known. Returns the likely cause, when tothe retry,exact fix steps(e.g. the missing argument), retry_after_seconds and a receipt. Free, no account; records  ⟨10 unchanged words⟩ 

 ⟨111 unchanged words⟩ ","maxLength":2048,"type":"string"},"verbose":{"default":false,"description":"Optional: true returns the full result with every underlying field. Default: a short answer.","type":"boolean"}},"type":"object"}

Verify claims,a citationsdelivery or a deliverycitations

Use this when asked whether somethinga service delivered what was promised, whether claims are true, or whether citations arecited accurate.pages Passcontain `citations`,the orquoted `claims`text. (+Pass `url`)`citations`, or a service `url` plus(+ `checks`, the `result` you got.got); Returns`claims` whichare checkcompared ranwith and`observations` eachyou result.supply. Free, no account; records a GAIP receipt  ⟨7 unchanged words⟩ 

 ⟨12 unchanged words⟩ Optional (delivery): what a good response is, e.g. [{\"id\": http_status_in\"http_status_in\", \"allowed\": [200]}, {\"id\": \"json_parses\"}]. Default: HTTP 200 and a non-empty body.","examples":[[{"allowed":[200],"id":"http_status_in"}, {"id":"content_type_is ","value":"application/json"},{"id":"non_empty"},{"id":"json_parses"}],[{"allowed":[200],"id":"http_status_in"},{"id":"json_required_keys","keys":["status"]},{"id":"json_path_equals","path":"status","value":"ok"},{"id":"max_latency_ms","limit":2000}]],"items":{"additionalProperties":false,"properties":{"allowed":{"description":"http_status_in: the acceptable HTTP statuses, e.g. [200].","items":{"maximum":599,"minimum":100,"type":"integer"},"maxItems":10,"minItems":1,"type":"array"},"id":{"description":"http_status_in (allowed), content_type_is (value), non_empty, json_parses.json_parses, Defaultjson_required_keys (keys), json_path_equals (path, value), max_latency_ms (limit), max_bytes (limit), text_contains (value), regex (pattern).","enum":["http_status_in","content_type_is","non_empty","json_parses","json_required_keys","json_path_equals","max_latency_ms","max_bytes","text_contains","regex"],"type":"string"},"keys":{"description":"json_required_keys:

 ⟨67 unchanged words⟩ "maxLength":2048,"type":"string"},"verbose":{"default":false,"description":"Optional: true returns the full result with every underlying field. Default: a short answer.","type":"boolean"},"webhook_url":{"description":"Optional: your own  ⟨27 unchanged words⟩ 

Buyer-sideUse assurancethis inwhen oneyou, step:the preflightbuyer, chose a public service you chose and recordwant theits delivery checkschecked youend expect.to Returnsend. aPass `terms_id`;`service_url`, finish`checks` withand assurance_completeexplicit_read_only_consent=true. GAIP preflights it and checkrecords anyyour receiptchecks; withreturns assurance_verify.a Free,`terms_id` read-only,for noassurance_complete. account.Free, Inputsno mustaccount; berecords publica andGAIP non-personal;receipt callingonly. declaresInputs thatmust (data_classificationbe defaultspublic toand PUBLIC).non-personal.

 ⟨16 unchanged words⟩ weather_forecast"}],"properties":{"checks":{"description":"Checks: http_status_in {allowed}, content_type_is {value}, non_empty, json_parses.","maxItems":8,"minItems":1,"type":"array"},"counterparty_id":{"description":"Name or URL of the agent or service.","type":"string"},"data_classification":{"default":"PUBLIC","description":"PUBLIC (default) or NON_PERSONAL_PUBLIC. Never send personal data.","enum":["PUBLIC","NON_PERSONAL_PUBLIC"],"type":"string"},"episode_id":{"description":"Optional: your own id to group related calls.","type":"string"},"explicit_read_only_consent":{"const":true,"description":"Must be true: you consent to a public, read-only check."},"service_url":{"description":"Public https URL of the service.","type":"string"},"task_class":{"description":"Optional: short name of the task, e.g. weather_forecast.","type":"string"}},"required":[" ⟨5 unchanged words⟩ 

{"destructiveHint":false,"openWorldHintidempotentHint":false,"openWorldHint":true,"readOnlyHint":false}

VerifyUse this when you hold a Buyer Assurance terms or delivery receiptreceipt_id byand ID.want to confirm it. Returns the retained record and its integrity proof (integrity only). Free, read-only, no account.account; Inputsinputs must be public and non-personal; calling declares that (data_classification defaults to PUBLIC).non-personal.

 ⟨6 unchanged words⟩ assurance_complete>"}],"properties":{"receipt_id":{"description":"A receipt_id returned by an earlier GAIP call.","type":"string"}},"required":["receipt_id ⟨2 unchanged words⟩ 

{"destructiveHint":false,"idempotentHint":true,"openWorldHint":false,"readOnlyHint":true}

Check an AI agent interfaceor MCP server

CheckUse anythis AIwhen agentasked beforeto youcheck installan orAI callagent it.or PassMCP justserver: itsdoes `url`it (sitework, A2Ais agentit cardreachable, MCPis serverits card / server.json or OpenAPI link): GAIPvalid fetches("check thethis cardagent", validates it against the"is A2A,this MCP or OpenAPIserver spec,up?"). testsPass thatjust its endpoint answers and`url`. returnsReturns READY / FIXES_NEEDED / NO_AGENT_CARD / UNREACHABLE. Or pass the card itself as `metadata`. Every finding has a severity, JSON path, plain-English fix and spec link, plus a 0-100 score and a JSON Patch with placeholders; the receipt verifies with verify_gaip_receipt. Set mode=VERIFY_BEFORE_CALLUNREACHABLE with `target` to get task-specific evidencefixes aboutand a counterparty instead.receipt. Free, read-only, no account.account; Inputsinputs must be public and non-personal; calling declares that (data_classification defaults to PUBLIC).non-personal.

{"additionalProperties":false,"examples":[{"url":"https://www.gaipagents.com/.well-known/agent-card.json"},{"metadata":{"name":"GAIP Broker","protocolVersion ⟨6 unchanged words⟩ :{"data_classification":{"default":"PUBLIC","description":"PUBLIC (default) or NON_PERSONAL_PUBLIC. Never send personal data.","enum":["PUBLIC","NON_PERSONAL_PUBLIC"],"type":"string"},"declared_identity":{"description":"Optional: the name the agent claims.","type":"string"},"expected_endpoint":{"description" ⟨15 unchanged words⟩ ,"type":"string"},"intended_task":{"description":"VERIFY_BEFORE_CALL: what you intend to delegate.","type":"string"},"metadata":{"description":"Alternative to url: the agent card or MCP/OpenAPI document itself.","type":"object"},"mode":{"description":"CONFORMANCE (default) checks the interface; VERIFY_BEFORE_CALL returns task-specific evidence about `target` for `intended_task`.","enum":["CONFORMANCE","VERIFY_BEFORE_CALL"],"type" ⟨36 unchanged words⟩ 2048,"type":"string"},"target":{"description":"VERIFY_BEFORE_CALL: the counterparty URL or reference.","oneOf":[{"format":"uri","type ⟨39 unchanged words⟩ 

{"destructiveHint":false,"idempotentHint":true,"openWorldHint":falsetrue,"readOnlyHint":true}

Compare public digital-art / NFT records (marketplace listing, block explorer, artist catalogue) field byUse field.this Passwhen aasked `question`whether andpublic `evidence_items`NFT asor thedigital-art records lookagree (creator/artist, title/namecreator, date/mint_date/createdtitle, edition, contract/contract_address, token_id/identifier, chain, mediumcontract, ortoken). claim+claim_key,Pass eacha with`question` aand source_url).`evidence_items`. Returns per-field AGREES / CONFLICT / SINGLE_SOURCE with values by source, what evidence would resolve each conflict, a CONSISTENT / CONFLICTS_FOUND / INSUFFICIENT_EVIDENCEper verdictfield andwith a receipt. URLs are not fetched; does not establishno authenticity, ownership or price.price finding. Free, read-only, no account.account; Inputsinputs must be public and non-personal; calling declares that (data_classification defaults to PUBLIC).non-personal.

 ⟨72 unchanged words⟩ properties":{"continuity_handle":{"additionalProperties":false,"description":"Optional: the continuity_handle from an earlier GAIP result; links this call to your earlier ones.","properties":{"continuity_id":{"type":"string" ⟨8 unchanged words⟩ },"data_classification":{"default":"PUBLIC","description":"PUBLIC (default) or NON_PERSONAL_PUBLIC. Never send personal data.","enum":["PUBLIC","NON_PERSONAL_PUBLIC"],"type":"string"},"episode_id":{"description":"Optional: your own id to group related calls.","type":"string"},"evidence_items":{"description":"Records as they appear, each with a source_url (not fetched).","items":{"type":"object"},"type":"array"},"independent_operator_id":{"description":"Optional: your operator id (recorded as a claim, not verified).","type":"string"},"question":{"description":"What you want to know about the records.","type":"string"},"synthetic":{"description":"Optional: true marks a test call.","type":"boolean"}},"required":[" ⟨4 unchanged words⟩ 

{"destructiveHint":false,"idempotentHint":true,"openWorldHint":false,"readOnlyHint":true}

WitnessVerify citations and quotes

CheckUse thatthis citedwhen webasked pagesto containverify thecitations quotedor text.quotes ("do these sources really say this?"). Pass `citations` (1-20 {url, quote?, claimed_title?, claimed_date?quote}). GAIP fetches each public page once (robots.txt respected), and per citation; returns QUOTE_FOUND / QUOTE_NOT_FOUND_IN_FETCHED_VERSION / SOURCE_UNREACHABLE / SOURCE_NOT_FOUND_404 / CONTENT_NOT_TEXT / ROBOTS_DISALLOWED, the fetch time, HTTP status, SHA-256 of the fetched bytesSOURCE_UNREACHABLE..., a matchedan excerpt of at most 300 characters and a receipt. No page copies are kept. Facts about the fetched version only; pages change. Not legal advice and not a judgement on any author. Free, read-only, no account.account; Inputsinputs must be public and non-personal; calling declares that (data_classification defaults to PUBLIC).non-personal.

 ⟨11 unchanged words⟩ }]}],"properties":{"citations":{"description":"1-20 citations, each {url, quote?, claimed_title?, claimed_date?}.","items":{"additionalProperties":false,"properties":{" ⟨31 unchanged words⟩ "array"},"data_classification":{"default":"PUBLIC","description":"PUBLIC (default) or NON_PERSONAL_PUBLIC. Never send personal data.","enum":["PUBLIC","NON_PERSONAL_PUBLIC"], ⟨6 unchanged words⟩ 

CompareWhat supplierchanged snapshotsbetween two versions

Detect breaking changes in an agent or API youUse dependthis on.when Passasked `prior`what andchanged `current`:between two versions of an A2A agent card, MCP server description, or OpenAPI document or("did athis {version,API endpoint,break?"). permissions,Pass ...}`prior` snapshot.and `current`. Returns each change (skill/tool/operation removed, auth added, endpoint moved, HTTPS downgrade, major version, capability or mode removed) as BREAKING / NON_BREAKING / INFO with impact and migration notes, an overall verdict and a receipt. Free, read-only, no account. Inputs mustaccount; berecords publica andGAIP non-personal;receipt callingonly. declaresInputs thatmust (data_classificationbe defaultspublic toand PUBLIC).non-personal.

 ⟨57 unchanged words⟩ properties":{"continuity_handle":{"additionalProperties":false,"description":"Optional: the continuity_handle from an earlier GAIP result; links this call to your earlier ones.","properties":{"continuity_id":{"type":"string" ⟨17 unchanged words⟩ ,"type":"string"},"current":{"description":"The later version, same kind as `prior`.","type":"object"},"data_classification":{"default":"PUBLIC","description":"PUBLIC (default) or NON_PERSONAL_PUBLIC. Never send personal data.","enum":["PUBLIC","NON_PERSONAL_PUBLIC"],"type":"string"},"episode_id":{"description":"Optional: your own id to group related calls.","type":"string"},"independent_operator_id":{"description":"Optional: your operator id (recorded as a claim, not verified).","type":"string"},"prior":{"description":"The earlier version: agent card, MCP server description, OpenAPI document or snapshot.","type":"object"},"protocol":{"description" ⟨13 unchanged words⟩ ,"type":"string"},"synthetic":{"description":"Optional: true marks a test call.","type":"boolean"},"task_class":{"default":"supplier_snapshot_comparison","description":"Optional: short name of the task, e.g. weather_forecast.","type":"string"}},"required": ⟨4 unchanged words⟩ 

{"destructiveHint":false,"idempotentHint":false,"openWorldHint":false,"readOnlyHint":false}

DiagnoseWhy integrationdid failuremy agent call fail?

AnUse agent-to-agentthis callwhen failed?an Passagent, theMCP `failure`or ({code,API detail}):call anfailed HTTP("why statusdid (400-504),my acall JSON-RPCfail?", A2A"what ordoes MCPthis error429 code,mean?"). orPass the raw error text`failure` (TLS{code, DNS,detail}) connectionor refused,the timeout,raw schemaerror mismatch).text. Returns a specificthe diagnosis,likely severitycause, whetherwhen and how to retry (attempts, backoff, Retry-After), ordered fix steps, the likely owner, evidence to capture and a receipt. Proposal only; GAIP does not touchtouches theno other system. Free, read-only, no account. Inputs mustaccount; berecords publica andGAIP non-personal;receipt callingonly. declaresInputs thatmust (data_classificationbe defaultspublic toand PUBLIC).non-personal.

 ⟨16 unchanged words⟩ properties":{"continuity_handle":{"additionalProperties":false,"description":"Optional: the continuity_handle from an earlier GAIP result; links this call to your earlier ones.","properties":{"continuity_id":{"type":"string" ⟨19 unchanged words⟩ },"data_classification":{"default":"PUBLIC","description":"PUBLIC (default) or NON_PERSONAL_PUBLIC. Never send personal data.","enum":["PUBLIC","NON_PERSONAL_PUBLIC"],"type":"string"},"episode_id":{"description":"Optional: your own id to group related calls.","type":"string"},"failure":{"description":"The error: {code, detail}. code is an HTTP status, JSON-RPC/A2A/MCP code or error text.","type":"object"},"independent_operator_id":{"description":"Optional: your operator id (recorded as a claim, not verified).","type":"string"},"protocol":{"description" ⟨13 unchanged words⟩ ,"type":"string"},"synthetic":{"description":"Optional: true marks a test call.","type":"boolean"},"task_class":{"default":"integration_failure_diagnosis","description":"Optional: short name of the task, e.g. weather_forecast.","type":"string"}},"required": ⟨3 unchanged words⟩ 

{"destructiveHint":false,"idempotentHint":false,"openWorldHint":false,"readOnlyHint":false}

AnUse this when an insurer, auditor or buyer askingasks what evidence exists about an agent or supplier?supplier. Pass its `subject` (public id or https URL), an optional `scope` (receipt_ids, since/until, categories, max_items) and optional `requester` (continuity_handle to include your own receipts). GetReturns conformance, watch, witness, repair and incident records, each with a verify URL and Merkle proof, a manifest of counts and gapsproofs, and a reference table of where it may help locate evidence for AIUC-1 / ISO/IEC 42001 reviews.plus Angaps. evidenceA compilation, not a certification or advice. If BLOCKED, read `hint`. Free, read-only, no account.account; Inputsinputs must be public and non-personal; calling declares that (data_classification defaults to PUBLIC).non-personal.

 ⟨14 unchanged words⟩ properties":{"requester":{"additionalProperties":false,"description":"Optional: {purpose, continuity_handle} to include your own receipts.","properties":{"continuity_handle":{"properties":{"continuity_id ⟨20 unchanged words⟩ :"object"},"scope":{"additionalProperties":false,"description":"Optional: {receipt_ids, since, until, categories, max_items}.","properties":{"categories":{"items":{ ⟨77 unchanged words⟩ 

SomethingUse this when something went wrong with an agent and you need the facts in order?order. Pass the `receipt_ids` you hold and attributed `observations` ({source, statement, observed_at_utc}). GAIP verifies each receipt,`observations`. ordersReturns a timelineverified, attributes every entry to its sourcesource-attributed andtimeline addswith an EU AI Act ArticleArt. 73 reference aid. No fault, cause or liability finding; not a regulatory filing. If BLOCKED, read `hint`.finding. Free, read-only, no account.account; Inputsinputs must be public and non-personal; calling declares that (data_classification defaults to PUBLIC).non-personal.

 ⟨37 unchanged words⟩ errors"}],"properties":{"ai_system_ref":{"description":"Optional: public id or URL of the AI system involved.","maxLength":256,"type":"string"},"data_classification":{"default":"PUBLIC","description":"PUBLIC (default) or NON_PERSONAL_PUBLIC. Never send personal data.","enum":["PUBLIC","NON_PERSONAL_PUBLIC"],"type":"string"},"observations":{"description":"Attributed observations, each {source, statement, observed_at_utc}.","items":{"additionalProperties":false,"properties":{" ⟨31 unchanged words⟩ ,"type":"array"},"receipt_ids":{"description":"GAIP receipt ids you hold about the incident.","items":{"type":"string"},"maxItems":50,"type":"array"},"title":{"description":"Optional: short incident title.","maxLength":120,"type":"string"}},"type":"object"}

ReadWhat manifestchanged changerecently (manifest log)

Read the Agent Observatory's hash-chainedUse Manifestthis Transparencywhen Log:asked which publishedMCP manifestsservers changed,or before/afteragents hashes,changed neutralrecently change("what factschanged andthis receipts.week?"). Optional `target_id`, `since` (RFC 3339), `target_id`, `limit` (max 100). Returns the Observatory's hash-chained log of manifest changes: before/after hashes, neutral facts, receipts. Free, read-only, no account.account; Inputsinputs must be public and non-personal; calling declares that (data_classification defaults to PUBLIC).non-personal.

 ⟨8 unchanged words⟩ 00Z"}],"properties":{"limit":{"description":"Optional: maximum entries (1-100).","maximum":100,"minimum":1,"type":"integer"},"since":{"description":"Optional: RFC 3339 time, e.g. 2026-09-01T00:00:00Z.","format":"date-time","type":"string"},"target_id":{"description":"Optional: an Observatory target id (obs_...).","pattern":"^obs_[0-9a-f]{24}$"," ⟨4 unchanged words⟩ 

MeasureDid the task outcomedeliver, and valueat what cost?

Independent outcome evidenceUse forthis outcome-pricedwhen contracts:asked recordwhether whatan aoutcome-priced task actually delivered and what the caller says it cost. Pass `counterparty_id`, `task_class`, `episode_id`, the `task` (acceptance_criteria), `delivery` (status) and `costs`;`costs`. getReturns a delivery, downstream-use and full-costcost dossier with a receipt. Missing costs and unverifiedUnverified claims stay explicit;marked; no ROI claim. Free, read-only, no account. Inputs mustaccount; berecords publica andGAIP non-personal;receipt callingonly. declaresInputs thatmust (data_classificationbe defaultspublic toand PUBLIC).non-personal.

 ⟨47 unchanged words⟩ :7}],"properties":{"baseline_cost_gbp":{"description":"Optional: what the task cost before, in GBP.","oneOf":[{"type":"number"},{"type":"string"}]},"continuity_handle":{"additionalProperties":false,"description":"Optional: the continuity_handle from an earlier GAIP result; links this call to your earlier ones.","properties":{"continuity_id":{"type":"string" ⟨6 unchanged words⟩ ,"type":"object"},"costs":{"description":"Caller-stated costs in GBP: agent_gbp, compute_gbp, human_review_gbp, repair_gbp.","type":"object"},"counterparty_id":{"description":"Name or URL of the agent or service.","type":"string"},"data_classification":{"default":"PUBLIC","description":"PUBLIC (default) or NON_PERSONAL_PUBLIC. Never send personal data.","enum":["PUBLIC","NON_PERSONAL_PUBLIC"],"type":"string"},"delivery":{"description":"What was delivered: {status, receipt_id?}.","required":["status"],"type":"object"},"downstream_use":{"description":"Optional: {status: USED|NOT_USED, evidence_ref}.","type":"object"},"episode_id":{"description":"Optional: your own id to group related calls.","type":"string"},"evidence_refs":{"description":"Optional: references to your own evidence (ids or URLs).","items":{"type":"string"},"maxItems":20,"type":"array"},"independent_operator_id":{"description":"Optional: your operator id (recorded as a claim, not verified).","type":"string"},"synthetic":{"description":"Optional: true marks a test call.","type":"boolean"},"task":{"description":"The task: {acceptance_criteria}.","required":["acceptance_criteria"],"type":"object"},"task_class":{

{"destructiveHint":false,"idempotentHint":false,"openWorldHint":false,"readOnlyHint":false}

Look up Observatoryan factsMCP server's or agent's history

WhatUse hasthis when asked about an MCP serverserver's or A2Aagent's agenthistory published("has overthis time?server Passchanged?", a"was `url`it orup `name`last toweek?"). findPass its Observatory target_id,`url` or a `target_id` for`name`. itsReturns dated facts the Agent Observatory observed: status history, manifest hash and bounded snapshot, conformance codes, metadata-signal rules (pattern present / not present) and the receipted change log. Facts observed at a time; notNot an assessment of safety or quality.assessment. Free, read-only, no account.account; Inputsinputs must be public and non-personal; calling declares that (data_classification defaults to PUBLIC).non-personal.

 ⟨5 unchanged words⟩ //weather.example.com/mcp"}],"properties":{"name":{"description":"Optional: server or agent name to search for.","maxLength":200,"type":"string"},"target_id":{"description":"Optional: an Observatory target id (obs_...).","pattern":"^obs_[0-9a-f]{24}$","type":"string"},"url":{"description":"Public URL of the MCP server or agent to look up.","maxLength":2048,"type":"string"}},"type":"object"}

TryStart here: try GAIP in one call

StartUse here.this Nofirst inputwhen needed.you Returnsare unsure which GAIP tool fits, or to see what GAIP candoes. doNo forinput. anReturns agent3-5 ready-to-run calls against real public targets, a live sample result,check and a ready-to-run argumentan setexample for every GAIP tool. Free, read-only, no account.account; Inputsinputs must be public and non-personal; calling declares that (data_classification defaults to PUBLIC).non-personal.

{"additionalProperties":false,"examples":[{}],"properties":{},"type":"object"}

NeedUse this when you need a GAIP receipt in another ecosystem's shape?format. Pass `receipt_id` and `format`: `x402`x402 (Settlement Attestation Receipt proposalattestation style), `erc8004`erc8004 (validation-response shape for off-chain publication) or `vc`vc (W3C-VC-like JSON-LD). Unsigned:Unsigned; integrity via hash chain and Merkle proof only;proof; no on-chain write. Free, read-only, no account.account; Inputsinputs must be public and non-personal; calling declares that (data_classification defaults to PUBLIC).non-personal.

 ⟨11 unchanged words⟩ tool>"}],"properties":{"format":{"description":"x402, erc8004 or vc.","enum":["x402","erc8004","vc"],"type":"string"},"receipt_id":{"description":"A receipt_id returned by an earlier GAIP call.","maxLength":128,"minLength":1,"type": ⟨6 unchanged words⟩ 

Diagnose a supplierWhy failureis withmy recentsupplier changesfailing?

AUse this when a supplier agent or API startedyou failing?depend Passon thestarted `failure`failing ({code,"did detail}),something thechange supplier'son publictheir side?"). Pass its `supplier_url` and optionallythe `failure_started_at`.`failure`. Returns the Integration Repair diagnosis plus the supplier card and readiness changes GAIP observed around that time, each with a receipt and labelledthen (correlated in time, (not causation), next steps and an offer to watch thewith supplier.receipts. Free, read-only, no account.account; Inputsinputs must be public and non-personal; calling declares that (data_classification defaults to PUBLIC).non-personal.

 ⟨15 unchanged words⟩ //weather.example.com/.well-known/agent-card.json"}],"properties":{"counterparty_id":{"description":"Optional: name of the supplier.","type":"string"},"data_classification":{"default":"PUBLIC","description":"PUBLIC (default) or NON_PERSONAL_PUBLIC. Never send personal data.","enum":["PUBLIC","NON_PERSONAL_PUBLIC"],"type" ⟨9 unchanged words⟩ ,"type":"object"},"failure_started_at":{"description":"Optional: RFC 3339 time the failures started.","format":"date-time","type":"string"},"failures":{"description":"Optional: several failures, each {code, detail}.","maxItems":100,"minItems":1,"type":"array"},"lookback_days":{"default":14,"description":"Optional: days of GAIP observations to look back over.","maximum":30,"minimum":1,"type":"integer"},"protocol":{"description":"A2A, MCP or OPENAPI. Inferred when omitted.","enum":["A2A","MCP","OPENAPI"],"type":"string"},"supplier_url":{"description":"Public https URL of the supplier's agent card, MCP server or API.","format":"uri","maxLength":2048,"type":"string"},"task_class":{"description":"Optional: short name of the task, e.g. weather_forecast.","type":"string"}},"required":[" ⟨3 unchanged words⟩ 

CompareVerify supplieran agent's or supplier's claims

BeforeUse relyingthis onwhen anotherasked agentto orverify API,what checkan itsagent, claimsAPI againstor whatsupplier wasclaims actually("verify observed.these claims"). Pass `claims` (each with an `id`), optionalyour `observations` ({claim_id, result: PASS|FAIL, detail}) and its `metadata`. Returns per-claim OBSERVED_AS_REPORTED / CONTRADICTED / MIXED / UNTESTED with pass/fail counts andper evidence,claim warningswith fora unusablereceipt. observationsFree, an interface check and ano receipt.account; Notrecords a certification. Free, read-only,GAIP noreceipt account.only. Inputs must be public and non-personal; calling declares that (data_classification defaults to PUBLIC).non-personal.

 ⟨49 unchanged words⟩ }]}],"properties":{"claims":{"description":"Claims to check, each {id, text}.","items":{"type":"object"},"maxItems" ⟨4 unchanged words⟩ array"},"continuity_handle":{"additionalProperties":false,"description":"Optional: the continuity_handle from an earlier GAIP result; links this call to your earlier ones.","properties":{"continuity_id":{"type":"string" ⟨19 unchanged words⟩ },"data_classification":{"default":"PUBLIC","description":"PUBLIC (default) or NON_PERSONAL_PUBLIC. Never send personal data.","enum":["PUBLIC","NON_PERSONAL_PUBLIC"],"type":"string"},"episode_id":{"description":"Optional: your own id to group related calls.","type":"string"},"independent_operator_id":{"description":"Optional: your operator id (recorded as a claim, not verified).","type":"string"},"metadata":{"description":"The published agent card, MCP server description or OpenAPI document (as JSON).","type":"object"},"observations":{"description":"Optional: what you saw, each {claim_id, result: PASS|FAIL, detail}.","items":{"type":"object"},"maxItems" ⟨18 unchanged words⟩ ,"type":"string"},"synthetic":{"description":"Optional: true marks a test call.","type":"boolean"},"task_class":{"default":"supplier_claim_check","description":"Optional: short name of the task, e.g. weather_forecast.","type":"string"}},"required": ⟨4 unchanged words⟩ 

{"destructiveHint":false,"idempotentHint":false,"openWorldHint":false,"readOnlyHint":false}

ReadUse recentthis changewhen eventsasked forwhat yourchanged watcheson (all,a watched agent or oneservice. `watch_id`)Pass your `continuity_handle` and optionally a `watch_id`. Returns recent change events: verdict before and after, a compact change summary, the event receipt and whether the webhook delivery succeeded.status. Free, read-only, no account.account; Inputsinputs must be public and non-personal; calling declares that (data_classification defaults to PUBLIC).non-personal.

 ⟨49 unchanged words⟩ ,"type":"object"},"limit":{"description":"Optional: maximum events to return.","maximum":50,"minimum":1,"type":"integer"},"watch_id":{"description":"The watch_id returned by gaip_watch_register.","type":"string"}},"required":[" ⟨3 unchanged words⟩ 

SeeUse this when asked which agents or services you are watching. Pass your watches:`continuity_handle`. Returns each watch's kind, target, last verdict, last and next check, and webhook endpoint (never the secret). Pass your `continuity_handle`. Free, read-only, no account.account; Inputsinputs must be public and non-personal; calling declares that (data_classification defaults to PUBLIC).non-personal.

Watch an agent, card or deliveryMCP server for changes

Keep watching anUse agentthis youwhen dependasked on,to forkeep free.an kind=AGENT_READINESSeye re-checkson an agent URL's readiness, SUPPLIER_CARD re-fetches its publishedor cardMCP andserver flags("tell BREAKINGme /if NON_BREAKINGit changes, DELIVERY_TERMS replays witness terms (terms_idor fromgoes witness_register_termsdown") and flags NOT_MET.. Pass the `continuity_handle` anfrom earlierany GAIP result gave you (it proves the watches are, yours)`kind` and optionally your own public https `webhook_url`: changes are`target_url`. POSTedGAIP therere-checks signedevery with24 X-GAIP-Signaturehours (HMAC-SHA256; the `webhook_secret` is shown once). FREE: 3 free watches), eachreceipts checkedeach atchange mostand everycan 24call hours;your everywebhook. changeFree, getsno aaccount; receipt.records Free,a read-only,GAIP noreceipt account.only. Inputs must be public and non-personal; calling declares that (data_classification defaults to PUBLIC).non-personal.

 ⟨55 unchanged words⟩ },"data_classification":{"default":"PUBLIC","description":"PUBLIC (default) or NON_PERSONAL_PUBLIC. Never send personal data.","enum":["PUBLIC","NON_PERSONAL_PUBLIC"],"type":"string"},"interval_hours":{"default":24,"description":"Optional: hours between checks (24 minimum on the free tier).","maximum":168,"minimum":24,"type":"integer"},"kind":{"description":"AGENT_READINESS (agent URL), SUPPLIER_CARD (published card) or DELIVERY_TERMS (terms_id).","enum":["AGENT_READINESS","DELIVERY_TERMS","SUPPLIER_CARD" ⟨50 unchanged words⟩ 

StopUse athis watch:when passasked to stop watching an agent or service. Pass your `continuity_handle` and the `watch_id`. Its stored events are deleted; retained receipts stay verifiable. Free, read-only, no account. Inputs mustaccount; berecords publica andGAIP non-personal;receipt callingonly. declaresInputs thatmust (data_classificationbe defaultspublic toand PUBLIC).non-personal.

 ⟨47 unchanged words⟩ ,"type":"object"},"watch_id":{"description":"The watch_id returned by gaip_watch_register.","type":"string"}},"required":["continuity_handle ⟨3 unchanged words⟩ 

Inspect counterpartyWhat evidence exists about this agent?

NeedUse this when asked what evidence exists about an agent before you delegatedelegating to it?it. Pass its `counterparty_id`, the `task_class` and any `observations` you have;`observations`. getReturns task-specific evidence coverage, conflicts, gaps and gapsGAIP's own earlier checks of it, with a receipt. NoNever universala trust score or decision.recommendation. Free, read-only, no account.account; Inputsinputs must be public and non-personal; calling declares that (data_classification defaults to PUBLIC).non-personal.

 ⟨41 unchanged words⟩ properties":{"continuity_handle":{"additionalProperties":false,"description":"Optional: the continuity_handle from an earlier GAIP result; links this call to your earlier ones.","properties":{"continuity_id":{"type":"string" ⟨6 unchanged words⟩ ,"type":"object"},"counterparty_id":{"description":"Name or URL of the agent or service.","type":"string"},"data_classification":{"default":"PUBLIC","description":"PUBLIC (default) or NON_PERSONAL_PUBLIC. Never send personal data.","enum":["PUBLIC","NON_PERSONAL_PUBLIC"],"type":"string"},"episode_id":{"description":"Optional: your own id to group related calls.","type":"string"},"independent_operator_id":{"description":"Optional: your operator id (recorded as a claim, not verified).","type":"string"},"observations":{"description":"Optional: observations about it, each {source, observed_at, evidence_digest, lifecycle_state, claim}.","items":{"type":"object"},"type":"array"},"synthetic":{"description":"Optional: true marks a test call.","type":"boolean"},"task_class":{"default ⟨12 unchanged words⟩ 

{"destructiveHint":false,"idempotentHint":true,"openWorldHint":false,"readOnlyHint":true}

PreflightWhich candidateagent agentscan do this task?

ChoosingUse betweenthis agentswhen orchoosing serviceswhich foragent ato task?hand Passa thetask `task_class`to and("which yourof `candidates`these (eachagents {counterparty_id,can explicit_read_only_consent,do payment_required,X?"). authentication_required,Pass task_classes})`task_class` and get which`candidates` ones(A2A youagent cancards). callReturns nowcallable andcandidates whyordered theby othersdeclared areskill held,match with(not a receipt. Noquality ranking), outreachheld orones appointment.with reasons and a receipt. Free, read-only, no account.account; Inputsinputs must be public and non-personal; calling declares that (data_classification defaults to PUBLIC).non-personal.

 ⟨82 unchanged words⟩ weather_forecast"}],"properties":{"candidates":{"description":"A2A agent cards as published, or {agent_card, explicit_read_only_consent}.","items":{"type":"object"},"type":"array"},"continuity_handle":{"additionalProperties":false,"description":"Optional: the continuity_handle from an earlier GAIP result; links this call to your earlier ones.","properties":{"continuity_id":{"type":"string" ⟨8 unchanged words⟩ },"data_classification":{"default":"PUBLIC","description":"PUBLIC (default) or NON_PERSONAL_PUBLIC. Never send personal data.","enum":["PUBLIC","NON_PERSONAL_PUBLIC"],"type":"string"},"episode_id":{"description":"Optional: your own id to group related calls.","type":"string"},"independent_operator_id":{"description":"Optional: your operator id (recorded as a claim, not verified).","type":"string"},"synthetic":{"description":"Optional: true marks a test call.","type":"boolean"},"task_class":{"description":"Optional: short name of the task, e.g. weather_forecast.","type":"string"}},"required":[" ⟨3 unchanged words⟩ 

{"destructiveHint":false,"idempotentHint":true,"openWorldHint":false,"readOnlyHint":true}

VerifyUse anythis when you hold a GAIP receipt_id and want to confirm it ("is this receipt ID:genuine?"). Returns the retained historyrecord, hash chain and Merkle inclusion proof. Integrity only;only: it does not make the underlying claim true. Free, read-only, no account.account; Inputsinputs must be public and non-personal; calling declares that (data_classification defaults to PUBLIC).non-personal.

 ⟨10 unchanged words⟩ properties":{"continuity_handle":{"additionalProperties":false,"description":"Optional: the continuity_handle from an earlier GAIP result; links this call to your earlier ones.","properties":{"continuity_id":{"type":"string" ⟨6 unchanged words⟩ ,"type":"object"},"data_classification":{"description":"PUBLIC (default) or NON_PERSONAL_PUBLIC. Never send personal data.","enum":["PUBLIC","NON_PERSONAL_PUBLIC"],"type":"string"},"episode_id":{"description":"Optional: your own id to group related calls.","type":"string"},"independent_operator_id":{"description":"Optional: your operator id (recorded as a claim, not verified).","type":"string"},"receipt_id":{"description":"A receipt_id returned by an earlier GAIP call.","maxLength":128,"minLength":1,"type":"string"},"synthetic":{"description":"Optional: true marks a test call.","type":"boolean"}},"required":[" ⟨3 unchanged words⟩ 

{"destructiveHint":false,"idempotentHint":true,"openWorldHint":false,"readOnlyHint":true}

CheckDid publicthe deliveryservice evidencedeliver?

CheckUse athis service'swhen realasked responsewhether againsta termsservice youdelivered registeredwhat withwas witness_register_terms.agreed mode=PUBLIC_REPLAY("did makesthe GAIPsupplier fetchdeliver?"). Pass the public`terms_id` URLfrom itself;witness_register_terms mode=BUYER_SUBMITTEDand checksmode aPUBLIC_REPLAY response(GAIP youfetches passit) in.or BUYER_SUBMITTED. Returns PASS/FAIL/UNKNOWNPASS / FAIL / UNKNOWN per check and a receipt. Free, read-only, no account.account; Inputsinputs must be public and non-personal; calling declares that (data_classification defaults to PUBLIC).non-personal.

 ⟨8 unchanged words⟩ witness_register_terms>"}],"properties":{"body":{"description":"BUYER_SUBMITTED: the response body you received (max 32 KiB).","maxLength":32768,"type":"string"},"body_sha256":{"description":"BUYER_SUBMITTED: SHA-256 of the body, instead of the body.","type":"string"},"content_type":{"description":"BUYER_SUBMITTED: the Content-Type you received.","type":"string"},"continuity_handle":{"additionalProperties":false,"description":"Optional: the continuity_handle from an earlier GAIP result; links this call to your earlier ones.","properties":{"continuity_id":{"type":"string" ⟨8 unchanged words⟩ },"data_classification":{"default":"PUBLIC","description":"PUBLIC (default) or NON_PERSONAL_PUBLIC. Never send personal data.","enum":["PUBLIC","NON_PERSONAL_PUBLIC"],"type":"string"},"episode_id":{"description":"Optional: your own id to group related calls.","type":"string"},"http_status":{"description":"BUYER_SUBMITTED: the HTTP status you received.","type":"integer"},"independent_operator_id":{"description":"Optional: your operator id (recorded as a claim, not verified).","type":"string"},"mode":{"description":"PUBLIC_REPLAY: GAIP fetches the public URL itself. BUYER_SUBMITTED: check a response you pass in.","enum":["BUYER_SUBMITTED","PUBLIC_REPLAY"],"type":"string"},"synthetic":{"description":"Optional: true marks a test call.","type":"boolean"},"terms_id":{"description":"The terms_id returned when the terms were registered.","type":"string"}},"required":[" ⟨4 unchanged words⟩ 

{"destructiveHint":false,"idempotentHint":true,"openWorldHint":true,"readOnlyHint":true}

Export a neutral, no-fault evidenceUse bundlethis forwhen a witnessed delivery receipt,failed e.g.and you need to share the facts with the other party. Pass the delivery `receipt_id`. Returns a neutral, no-fault evidence bundle with verifiable receipts. Free, read-only, no account.account; Inputsinputs must be public and non-personal; calling declares that (data_classification defaults to PUBLIC).non-personal.

 ⟨4 unchanged words⟩ witness_delivery>"}],"properties":{"receipt_id":{"description":"A receipt_id returned by an earlier GAIP call.","type":"string"}},"required":["receipt_id ⟨2 unchanged words⟩ 

{"destructiveHint":false,"idempotentHint":true,"openWorldHint":false,"readOnlyHint":true}

AboutUse this when about to depend on a public HTTPS service?service Registerand whatyou awant goodneutral responseevidence looksof likewhat (it delivers. Pass `service_url`; `checks`: http_status_in,default content_type_is,to non_empty,HTTP json_parses)200 and get a `terms_id`. Thennon-empty callbody. witness_deliveryReturns toa have`terms_id`; GAIPthen independentlycall checkwitness_delivery. whatFree, theno serviceaccount; returns.records Free,a read-only,GAIP noreceipt account.only. Inputs must be public and non-personal; calling declares that (data_classification defaults to PUBLIC).non-personal.

 ⟨12 unchanged words⟩ //weather.example.com/forecast.json"}],"properties":{"checks":{"description":"Checks: http_status_in {allowed}, content_type_is {value}, non_empty, json_parses.","maxItems":8,"minItems":1,"type":"array"},"data_classification":{"default":"PUBLIC","description":"PUBLIC (default) or NON_PERSONAL_PUBLIC. Never send personal data.","enum":["PUBLIC","NON_PERSONAL_PUBLIC"],"type":"string"},"seller_ref":{"description":"Optional: name of the supplier. Defaults to the host of service_url.","type":"string"},"service_url":{"description":"Public https URL of the service.","type":"string"}},"required":["seller_ref","service_url","checks"],"type":"object"}

{"destructiveHint":false,"idempotentHint":false,"openWorldHint":false,"readOnlyHint":false}

Compare public digital-art / NFT records (marketplace listing, on-chainblock explorer, artist catalogue) and find wherefield theyby conflict.field. Pass a `question` and `evidence_items`;`evidence_items` getas conflictsthe records look (creator/artist, gapstitle/name, date/mint_date/created, edition, contract/contract_address, token_id/identifier, chain, medium, or claim+claim_key, each with a source_url). Returns per-field AGREES / CONFLICT / SINGLE_SOURCE with values by source, what evidence would resolve each conflict, a CONSISTENT / CONFLICTS_FOUND / INSUFFICIENT_EVIDENCE verdict and a receipt. DoesURLs are not provefetched; does not establish authenticity, ownership or price. Free, read-only, no account. ⟨14 unchanged words⟩ 

{"additionalProperties":true,"examples":[{"evidence_items":[{"chain":"ethereum","contract":"0xa11ce00000000000000000000000000000000042","creator":"Artist A","edition":"1 of 10","identifier":"7","name":"Harbour at Dusk","source":"marketplace_listing","source_url":"https://opensea.io/assets/ethereum/0xa11ce00000000000000000000000000000000042/7"},{"creatorchain":"eth","contract_address":"0xA11CE00000000000000000000000000000000042","mint_date":"2021-03-14T09:26:53Z","source":"block_explorer","source_url":"https://etherscan.io/nft/0xa11ce00000000000000000000000000000000042/7","token_id":"7"},{"artist":"Artist A","created":"2021","edition":"1/5","medium":"Digital painting","source":"onchain_metadataartist_catalogue","source_url":"https://artist-a.example/catalogue/harbour-at-dusk","title":"Harbour at Dusk"}],"question":"Do these public records agree on the creator?creator and the edition?"}],"properties":{"continuity_handle":{"additionalProperties ⟨44 unchanged words⟩ 

 ⟨7 unchanged words⟩  API you depend on. Pass `prior` and `current`: snapshotstwo (versionversions of an A2A agent card, protocolMCP server description, OpenAPI document or a {version, endpoint, permissions, task_result...} snapshot. Returns each change (skill/tool/operation removed, claims_hashauth added, endpoint moved, HTTPS downgrade, major version, capability or mode removed) andas getBREAKING the/ materialNON_BREAKING changes/ INFO with aimpact REVIEW_CHANGEand /migration NO_MATERIAL_CHANGE_OBSERVEDnotes, signalan overall verdict and a receipt. Free, read-only, no account. ⟨14 unchanged words⟩ 

 ⟨3 unchanged words⟩ [{"counterparty_id":"example-weather-agent","current":{"endpointcapabilities":{"streaming":true},"name":"Weather Agent","protocolVersion":"0.3.0","security":[{"bearer":[]}],"securitySchemes":{"bearer":{"scheme":"bearer","type":"http"}},"skills":[{"id":"forecast","name":"Forecast"}],"url":"https://weather.example.com/v2/mcp//weather.example.com/v2/a2a","version":"1.12.0.0"},"prior":{"endpointcapabilities":{"streaming":true},"name":"Weather Agent","protocolVersion":"0.3.0","skills":[{"id":"forecast","name":"Forecast"},{"id":"alerts","name":"Severe weather alerts"}],"url":"https://weather.example.com/mcp//weather.example.com/a2a","version":"1.01.4.0"}}],"properties":{"continuity_handle":{" ⟨75 unchanged words⟩ 

An agent-to-agent call failed? Pass the `failure` ({code, detail}; codes): SCHEMA_MISMATCHan HTTP status (400-504), AUTH_REQUIREDa JSON-RPC, TIMEOUTA2A or MCP error code, TASK_NOT_COMPLETEDor the raw error text (TLS, UNSUPPORTED_PROTOCOL)DNS, andconnection getrefused, timeout, schema mismatch). Returns a specific diagnosis, aseverity, concretewhether repairand stephow to retry (attempts, backoff, Retry-After), ordered fix steps, the likely owner, evidence to capture and a receipt. Proposal only; GAIP does not ⟨22 unchanged words⟩ 

 ⟨3 unchanged words⟩ counterparty_id":"example-weather-agent","failure":{"code":"SCHEMA_MISMATCH"429,"detail":"expectedHTTP field429 'temp_c',Too gotMany 'temperature'Requests; Retry-After: 20"}}],"properties":{"continuity_handle":{" ⟨71 unchanged words⟩ 

 ⟨21 unchanged words⟩ ), optional `observations` ({claim_id, result: PASS|FAIL, detail}) and its `metadata`. Returns per-claim OBSERVED_AS_REPORTED / CONTRADICTED / MIXED / UNTESTED pluswith pass/fail counts and evidence, warnings for unusable observations, an interface check and a receipt. Not a ⟨19 unchanged words⟩ 

 ⟨6 unchanged words⟩ "text":"Returns JSON forecasts over MCP"},{"id":"c2","text":"Responds within 2 seconds"}],"counterparty_id":"example-weather-agent","metadata":{" ⟨5 unchanged words⟩ ,"observations":[{"claim_id":"c1","detail":"tools/call returned valid JSON","result":"PASS"},{"claim_id":"c2","detail":"p95 latency 4.8 s over 20 calls","result":"FAIL"}]}],"properties":{"claims":{ ⟨90 unchanged words⟩ 

Compare public digital-art / NFT records (marketplace listing, on-chainblock explorer, artist catalogue) and find wherefield theyby conflict.field. Pass a `question` and `evidence_items`;`evidence_items` getas conflictsthe records look (creator/artist, gapstitle/name, date/mint_date/created, edition, contract/contract_address, token_id/identifier, chain, medium, or claim+claim_key, each with a source_url). Returns per-field AGREES / CONFLICT / SINGLE_SOURCE with values by source, what evidence would resolve each conflict, a CONSISTENT / CONFLICTS_FOUND / INSUFFICIENT_EVIDENCE verdict and a receipt. DoesURLs are not provefetched; does not establish authenticity, ownership or price. Free, read-only, no account. ⟨14 unchanged words⟩ 

{"additionalProperties":true,"examples":[{"evidence_items":[{"chain":"ethereum","contract":"0xa11ce00000000000000000000000000000000042","creator":"Artist A","edition":"1 of 10","identifier":"7","name":"Harbour at Dusk","source":"marketplace_listing","source_url":"https://opensea.io/assets/ethereum/0xa11ce00000000000000000000000000000000042/7"},{"creatorchain":"eth","contract_address":"0xA11CE00000000000000000000000000000000042","mint_date":"2021-03-14T09:26:53Z","source":"block_explorer","source_url":"https://etherscan.io/nft/0xa11ce00000000000000000000000000000000042/7","token_id":"7"},{"artist":"Artist A","created":"2021","edition":"1/5","medium":"Digital painting","source":"onchain_metadataartist_catalogue","source_url":"https://artist-a.example/catalogue/harbour-at-dusk","title":"Harbour at Dusk"}],"question":"Do these public records agree on the creator?creator and the edition?"}],"properties":{"continuity_handle":{"additionalProperties ⟨44 unchanged words⟩ 

 ⟨7 unchanged words⟩  API you depend on. Pass `prior` and `current`: snapshotstwo (versionversions of an A2A agent card, protocolMCP server description, OpenAPI document or a {version, endpoint, permissions, task_result...} snapshot. Returns each change (skill/tool/operation removed, claims_hashauth added, endpoint moved, HTTPS downgrade, major version, capability or mode removed) andas getBREAKING the/ materialNON_BREAKING changes/ INFO with aimpact REVIEW_CHANGEand /migration NO_MATERIAL_CHANGE_OBSERVEDnotes, signalan overall verdict and a receipt. Free, read-only, no account. ⟨14 unchanged words⟩ 

 ⟨3 unchanged words⟩ [{"counterparty_id":"example-weather-agent","current":{"endpointcapabilities":{"streaming":true},"name":"Weather Agent","protocolVersion":"0.3.0","security":[{"bearer":[]}],"securitySchemes":{"bearer":{"scheme":"bearer","type":"http"}},"skills":[{"id":"forecast","name":"Forecast"}],"url":"https://weather.example.com/v2/mcp//weather.example.com/v2/a2a","version":"1.12.0.0"},"prior":{"endpointcapabilities":{"streaming":true},"name":"Weather Agent","protocolVersion":"0.3.0","skills":[{"id":"forecast","name":"Forecast"},{"id":"alerts","name":"Severe weather alerts"}],"url":"https://weather.example.com/mcp//weather.example.com/a2a","version":"1.01.4.0"}}],"properties":{"continuity_handle":{" ⟨75 unchanged words⟩ 

An agent-to-agent call failed? Pass the `failure` ({code, detail}; codes): SCHEMA_MISMATCHan HTTP status (400-504), AUTH_REQUIREDa JSON-RPC, TIMEOUTA2A or MCP error code, TASK_NOT_COMPLETEDor the raw error text (TLS, UNSUPPORTED_PROTOCOL)DNS, andconnection getrefused, timeout, schema mismatch). Returns a specific diagnosis, aseverity, concretewhether repairand stephow to retry (attempts, backoff, Retry-After), ordered fix steps, the likely owner, evidence to capture and a receipt. Proposal only; GAIP does not ⟨22 unchanged words⟩ 

 ⟨3 unchanged words⟩ counterparty_id":"example-weather-agent","failure":{"code":"SCHEMA_MISMATCH"429,"detail":"expectedHTTP field429 'temp_c',Too gotMany 'temperature'Requests; Retry-After: 20"}}],"properties":{"continuity_handle":{" ⟨71 unchanged words⟩ 

 ⟨21 unchanged words⟩ ), optional `observations` ({claim_id, result: PASS|FAIL, detail}) and its `metadata`. Returns per-claim OBSERVED_AS_REPORTED / CONTRADICTED / MIXED / UNTESTED pluswith pass/fail counts and evidence, warnings for unusable observations, an interface check and a receipt. Not a ⟨19 unchanged words⟩ 

 ⟨6 unchanged words⟩ "text":"Returns JSON forecasts over MCP"},{"id":"c2","text":"Responds within 2 seconds"}],"counterparty_id":"example-weather-agent","metadata":{" ⟨5 unchanged words⟩ ,"observations":[{"claim_id":"c1","detail":"tools/call returned valid JSON","result":"PASS"},{"claim_id":"c2","detail":"p95 latency 4.8 s over 20 calls","result":"FAIL"}]}],"properties":{"claims":{ ⟨90 unchanged words⟩ 

PreflightBuyer-side assurance in one buyer-selectedstep: preflight a public service you chose and record caller-declaredthe delivery checks.checks Noyou supplierexpect. appointmentReturns a `terms_id`; finish with assurance_complete and check any receipt with assurance_verify. Free, callread-only, contractno oraccount. payment.Inputs must be public and non-personal; calling declares that (data_classification defaults to PUBLIC).

{"examples":[{"checks":[{"allowed":[200],"id":"http_status_in"},{"id":"json_parses"}],"counterparty_id":"example-weather-agent","explicit_read_only_consent":true,"service_url":"https://weather.example.com/forecast.json","task_class":"weather_forecast"}],"properties":{"checks":{"maxItems":8," ⟨5 unchanged words⟩ {"type":"string"},"data_classification":{"default":"PUBLIC","enum":["PUBLIC","NON_PERSONAL_PUBLIC"],"type":"string"},"episode_id":{"type":"string"}, ⟨7 unchanged words⟩ "type":"string"}},"required":["data_classification","counterparty_id","service_url","task_class","checks","explicit_read_only_consent"],"type":"object"}

Verify a retained Buyer Assurance terms or delivery receipt withoutby assigningID. external-useFree, credit.read-only, no account. Inputs must be public and non-personal; calling declares that (data_classification defaults to PUBLIC).

{"examples":[{"receipt_id":"<receipt_id from assurance_prepare or assurance_complete>"}],"properties":{"receipt_id":{"type":"string" ⟨4 unchanged words⟩ 

UseCheck thisany whenAI installingagent anbefore you install or call it. Pass just its `url` (site, A2A agent card, MCP server description or OpenAPI agent.link): SupplyGAIP publicfetches metadatathe tocard, checkvalidates it, tests that its declaredendpoint interface.answers and returns READY / FIXES_NEEDED / UNREACHABLE with concrete fixes and a receipt. Or pass the card itself as `metadata`. Set modemode=VERIFY_BEFORE_CALL VERIFY_BEFORE_CALLwith `target` to inspectget task-specific evidence about a counterparty evidenceinstead. beforeFree, delegation.read-only, no account. Inputs must be public and non-personal; calling declares that (data_classification defaults to PUBLIC).

{"additionalProperties":false,"examples":[{"metadata":{"name":"GAIP Broker","protocolVersion":"2025-06-18","tools":[],"url":"https://www.gaipagents.com/mcp"}}],"properties":{"data_classification":{"default":"PUBLIC","enum":["PUBLIC","NON_PERSONAL_PUBLIC"],"type" ⟨14 unchanged words⟩ ,"type":"string"},"protocol":{"description":"Counterparty protocol. Inferred from metadata when omitted, otherwise MCP.","enum":["A2A","MCP","OPENAPI"] ⟨7 unchanged words⟩ :"string"},{"type":"object"}]},"url":{"description":"Public https link to an agent, its A2A agent card, MCP server description or OpenAPI document. GAIP fetches, validates and reach-tests it. Use instead of metadata.","format":"uri","maxLength":2048,"type":"string"}},"type":"object"}

UseCompare thispublic whendigital-art you/ haveNFT publicrecords digital-art(marketplace, recordson-chain, tocatalogue) compare.and Supplyfind where they conflict. Pass a question`question` and evidence items;`evidence_items`; receiveget conflicts, limitsgaps and a retained receipt. This doesDoes not prove ownership or price. Free, read-only, no account. Inputs must be public and non-personal; calling declares that (data_classification defaults to PUBLIC).

{"additionalProperties":true,"examples":[{"evidence_items":[{"creator":"Artist A","source":"marketplace_listing"},{"creator":"Artist A","source":"onchain_metadata"}],"question":"Do these public records agree on the creator?"}],"properties":{"continuity_handle":{"additionalProperties":false," ⟨10 unchanged words⟩ ,"type":"object"},"data_classification":{"default":"PUBLIC","enum":["PUBLIC","NON_PERSONAL_PUBLIC"],"type" ⟨17 unchanged words⟩ {"type":"boolean"}},"required":["data_classification","question","evidence_items"],"type":"object"}

CompareDetect twobreaking suppliedchanges publicin an agent or API you depend on. Pass `prior` and `current` snapshots (version, protocol, endpoint, permissions, task_result, claims_hash) and returnget the material changes with a retainedREVIEW_CHANGE / NO_MATERIAL_CHANGE_OBSERVED signal and a receipt. TheFree, separateread-only, scheduledno GAIPaccount. cohortInputs watchmust isbe publishedpublic atand /v1/free/commercial/watch-status.non-personal; calling declares that (data_classification defaults to PUBLIC).

{"additionalProperties":true,"examples":[{"counterparty_id":"example-weather-agent","current":{"endpoint":"https://weather.example.com/v2/mcp","version":"1.1"},"prior":{"endpoint":"https://weather.example.com/mcp","version":"1.0"}}],"properties":{"continuity_handle":{"additionalProperties":false," ⟨10 unchanged words⟩ ,"type":"object"},"counterparty_id":{"description":"Name or URL of the agent/service. Optional.","type":"string"},"current":{"type":"object"},"data_classification":{"default":"PUBLIC","enum":["PUBLIC","NON_PERSONAL_PUBLIC"],"type" ⟨8 unchanged words⟩ {"type":"object"},"protocol":{"description":"Counterparty protocol. Inferred from metadata when omitted, otherwise MCP.","enum":["A2A","MCP","OPENAPI"] ⟨3 unchanged words⟩ {"type":"boolean"},"task_class":{"default":"supplier_snapshot_comparison","type":"string"}},"required":["data_classification","counterparty_id","task_class","protocol","prior","current"],"type":"object"}

ClassifyAn aagent-to-agent suppliedcall publicfailed? handshakePass orthe task`failure` failure({code, detail}; codes: SCHEMA_MISMATCH, AUTH_REQUIRED, TIMEOUT, TASK_NOT_COMPLETED, UNSUPPORTED_PROTOCOL) and returnget a boundeddiagnosis, a concrete repair planstep and retaineda receipt. NoProposal patchonly; orGAIP replaydoes ofnot anothertouch operator'sthe other system. Free, read-only, no account. Inputs must be public and non-personal; calling declares that (data_classification defaults to PUBLIC).

{"additionalProperties":true,"examples":[{"counterparty_id":"example-weather-agent","failure":{"code":"SCHEMA_MISMATCH","detail":"expected field 'temp_c', got 'temperature'"}}],"properties":{"continuity_handle":{"additionalProperties":false," ⟨10 unchanged words⟩ ,"type":"object"},"counterparty_id":{"description":"Name or URL of the agent/service. Optional.","type":"string"},"data_classification":{"default":"PUBLIC","enum":["PUBLIC","NON_PERSONAL_PUBLIC"],"type" ⟨8 unchanged words⟩ {"type":"string"},"protocol":{"description":"Counterparty protocol. Inferred from metadata when omitted, otherwise MCP.","enum":["A2A","MCP","OPENAPI"] ⟨3 unchanged words⟩ {"type":"boolean"},"task_class":{"default":"integration_failure_diagnosis","type":"string"}},"required":["data_classification","counterparty_id","task_class","protocol","failure"],"type":"object"}

CompareBefore suppliedrelying publicon claimsanother andagent taskor observationsAPI, check declaredits metadataclaims against what was actually observed. Pass `claims` (each with an `id`), optional `observations` ({claim_id, result: PASS|FAIL}) and returnits dispositions`metadata`. withReturns aper-claim retainedOBSERVED_AS_REPORTED / CONTRADICTED / UNTESTED plus an interface check and a receipt. NoNot suppliera approvalcertification. orFree, independentread-only, claimno verification.account. Inputs must be public and non-personal; calling declares that (data_classification defaults to PUBLIC).

{"additionalProperties":true,"examples":[{"claims":[{"id":"c1","text":"Returns JSON forecasts over MCP"}],"counterparty_id":"example-weather-agent","metadata":{"protocolVersion":"2025-06-18","url":"https://weather.example.com/mcp"},"observations":[{"claim_id":"c1","result":"PASS"}]}],"properties":{"claims":{"items":{"type ⟨20 unchanged words⟩ ,"type":"object"},"counterparty_id":{"description":"Name or URL of the agent/service. Optional.","type":"string"},"data_classification":{"default":"PUBLIC","enum":["PUBLIC","NON_PERSONAL_PUBLIC"],"type" ⟨16 unchanged words⟩ ,"type":"array"},"protocol":{"description":"Counterparty protocol. Inferred from metadata when omitted, otherwise MCP.","enum":["A2A","MCP","OPENAPI"] ⟨3 unchanged words⟩ {"type":"boolean"},"task_class":{"default":"supplier_claim_check","type":"string"}},"required":["data_classification","counterparty_id","task_class","protocol","claims","metadata"],"type":"object"}

Use this when you haveVerify aany GAIP receipt ID and need to check: retained history, hash chain and Merkle inclusion proof. Integrity only; it does not establishmake the truthunderlying ofclaim thetrue. underlyingFree, claim.read-only, no account. Inputs must be public and non-personal; calling declares that (data_classification defaults to PUBLIC).

{"additionalProperties":true,"examples":[{"receipt_id":"<receipt_id returned by any GAIP tool>"}],"properties":{"continuity_handle":{"additionalProperties":false," ⟨38 unchanged words⟩ 

CompareCheck a registeredservice's callerreal assertionresponse against aterms lateryou publicregistered replaywith orwitness_register_terms. submittedmode=PUBLIC_REPLAY makes GAIP fetch the public response.URL Unknownitself; whenmode=BUYER_SUBMITTED evidencechecks isa unavailable;response you pass in. Returns PASS/FAIL/UNKNOWN per check and a receipt. Free, read-only, no originalaccount. transactionInputs ormust sellerbe agreementpublic proof.and non-personal; calling declares that (data_classification defaults to PUBLIC).

{"additionalProperties":true,"examples":[{"mode":"PUBLIC_REPLAY","terms_id":"<terms_id from witness_register_terms>"}],"properties":{"body":{"maxLength":32768," ⟨21 unchanged words⟩ ,"type":"object"},"data_classification":{"default":"PUBLIC","enum":["PUBLIC","NON_PERSONAL_PUBLIC"],"type" ⟨20 unchanged words⟩ {"type":"string"}},"required":["data_classification","terms_id","mode"],"type":"object"}

Export a neutral, no-fault evidence bundle for a retainedwitnessed delivery receipt.receipt, e.g. to share with the other party. Free, read-only, no account. Inputs must be public and non-personal; calling declares that (data_classification defaults to PUBLIC).

{"examples":[{"receipt_id":"<receipt_id from witness_delivery>"}],"properties":{"receipt_id":{"type":"string" ⟨4 unchanged words⟩ 

RegisterAbout caller-declaredto checksdepend foron a public HTTPS service.service? ThisRegister doeswhat nota verifygood sellerresponse agreementlooks orlike payment.(`checks`: http_status_in, content_type_is, non_empty, json_parses) and get a `terms_id`. Then call witness_delivery to have GAIP independently check what the service returns. Free, read-only, no account. Inputs must be public and non-personal; calling declares that (data_classification defaults to PUBLIC).

{"examples":[{"checks":[{"allowed":[200],"id":"http_status_in"},{"id":"json_parses"}],"seller_ref":"example-weather-agent","service_url":"https://weather.example.com/forecast.json"}],"properties":{"checks":{"maxItems":8,"minItems":1,"type":"array"},"data_classification":{"default":"PUBLIC","enum":["PUBLIC","NON_PERSONAL_PUBLIC"],"type":"string"},"seller_ref":{"type":"string"},"service_url":{"type":"string"}},"required":["data_classification","seller_ref","service_url","checks"],"type":"object"}

PreflightBuyer-side assurance in one buyer-selectedstep: preflight a public service you chose and record caller-declaredthe delivery checks.checks Noyou supplierexpect. appointmentReturns a `terms_id`; finish with assurance_complete and check any receipt with assurance_verify. Free, callread-only, contractno oraccount. payment.Inputs must be public and non-personal; calling declares that (data_classification defaults to PUBLIC).

{"examples":[{"checks":[{"allowed":[200],"id":"http_status_in"},{"id":"json_parses"}],"counterparty_id":"example-weather-agent","explicit_read_only_consent":true,"service_url":"https://weather.example.com/forecast.json","task_class":"weather_forecast"}],"properties":{"checks":{"maxItems":8," ⟨5 unchanged words⟩ {"type":"string"},"data_classification":{"default":"PUBLIC","enum":["PUBLIC","NON_PERSONAL_PUBLIC"],"type":"string"},"episode_id":{"type":"string"}, ⟨7 unchanged words⟩ "type":"string"}},"required":["data_classification","counterparty_id","service_url","task_class","checks","explicit_read_only_consent"],"type":"object"}

Verify a retained Buyer Assurance terms or delivery receipt withoutby assigningID. external-useFree, credit.read-only, no account. Inputs must be public and non-personal; calling declares that (data_classification defaults to PUBLIC).

{"examples":[{"receipt_id":"<receipt_id from assurance_prepare or assurance_complete>"}],"properties":{"receipt_id":{"type":"string" ⟨4 unchanged words⟩ 

UseCheck thisany whenAI installingagent anbefore you install or call it. Pass just its `url` (site, A2A agent card, MCP server description or OpenAPI agent.link): SupplyGAIP publicfetches metadatathe tocard, checkvalidates it, tests that its declaredendpoint interface.answers and returns READY / FIXES_NEEDED / UNREACHABLE with concrete fixes and a receipt. Or pass the card itself as `metadata`. Set modemode=VERIFY_BEFORE_CALL VERIFY_BEFORE_CALLwith `target` to inspectget task-specific evidence about a counterparty evidenceinstead. beforeFree, delegation.read-only, no account. Inputs must be public and non-personal; calling declares that (data_classification defaults to PUBLIC).

{"additionalProperties":false,"examples":[{"metadata":{"name":"GAIP Broker","protocolVersion":"2025-06-18","tools":[],"url":"https://www.gaipagents.com/mcp"}}],"properties":{"data_classification":{"default":"PUBLIC","enum":["PUBLIC","NON_PERSONAL_PUBLIC"],"type" ⟨14 unchanged words⟩ ,"type":"string"},"protocol":{"description":"Counterparty protocol. Inferred from metadata when omitted, otherwise MCP.","enum":["A2A","MCP","OPENAPI"] ⟨7 unchanged words⟩ :"string"},{"type":"object"}]},"url":{"description":"Public https link to an agent, its A2A agent card, MCP server description or OpenAPI document. GAIP fetches, validates and reach-tests it. Use instead of metadata.","format":"uri","maxLength":2048,"type":"string"}},"type":"object"}

UseCompare thispublic whendigital-art you/ haveNFT publicrecords digital-art(marketplace, recordson-chain, tocatalogue) compare.and Supplyfind where they conflict. Pass a question`question` and evidence items;`evidence_items`; receiveget conflicts, limitsgaps and a retained receipt. This doesDoes not prove ownership or price. Free, read-only, no account. Inputs must be public and non-personal; calling declares that (data_classification defaults to PUBLIC).

{"additionalProperties":true,"examples":[{"evidence_items":[{"creator":"Artist A","source":"marketplace_listing"},{"creator":"Artist A","source":"onchain_metadata"}],"question":"Do these public records agree on the creator?"}],"properties":{"continuity_handle":{"additionalProperties":false," ⟨10 unchanged words⟩ ,"type":"object"},"data_classification":{"default":"PUBLIC","enum":["PUBLIC","NON_PERSONAL_PUBLIC"],"type" ⟨17 unchanged words⟩ {"type":"boolean"}},"required":["data_classification","question","evidence_items"],"type":"object"}

CompareDetect twobreaking suppliedchanges publicin an agent or API you depend on. Pass `prior` and `current` snapshots (version, protocol, endpoint, permissions, task_result, claims_hash) and returnget the material changes with a retainedREVIEW_CHANGE / NO_MATERIAL_CHANGE_OBSERVED signal and a receipt. TheFree, separateread-only, scheduledno GAIPaccount. cohortInputs watchmust isbe publishedpublic atand /v1/free/commercial/watch-status.non-personal; calling declares that (data_classification defaults to PUBLIC).

{"additionalProperties":true,"examples":[{"counterparty_id":"example-weather-agent","current":{"endpoint":"https://weather.example.com/v2/mcp","version":"1.1"},"prior":{"endpoint":"https://weather.example.com/mcp","version":"1.0"}}],"properties":{"continuity_handle":{"additionalProperties":false," ⟨10 unchanged words⟩ ,"type":"object"},"counterparty_id":{"description":"Name or URL of the agent/service. Optional.","type":"string"},"current":{"type":"object"},"data_classification":{"default":"PUBLIC","enum":["PUBLIC","NON_PERSONAL_PUBLIC"],"type" ⟨8 unchanged words⟩ {"type":"object"},"protocol":{"description":"Counterparty protocol. Inferred from metadata when omitted, otherwise MCP.","enum":["A2A","MCP","OPENAPI"] ⟨3 unchanged words⟩ {"type":"boolean"},"task_class":{"default":"supplier_snapshot_comparison","type":"string"}},"required":["data_classification","counterparty_id","task_class","protocol","prior","current"],"type":"object"}

ClassifyAn aagent-to-agent suppliedcall publicfailed? handshakePass orthe task`failure` failure({code, detail}; codes: SCHEMA_MISMATCH, AUTH_REQUIRED, TIMEOUT, TASK_NOT_COMPLETED, UNSUPPORTED_PROTOCOL) and returnget a boundeddiagnosis, a concrete repair planstep and retaineda receipt. NoProposal patchonly; orGAIP replaydoes ofnot anothertouch operator'sthe other system. Free, read-only, no account. Inputs must be public and non-personal; calling declares that (data_classification defaults to PUBLIC).