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reach-checkoutask_arccan_agent_checkoutprecheckfind_agent_ready_storesagent_commerce_adoptionproduct_data_checkgoogle_checkout_readinessget_agent_factslist_category_agent_factsdataset_infoprotocol_matrixagent_leaderboardsubmit_leaderboard_runsubmit_storestore_cardvalidate_ucp_profile

Declared skills

ask_arc — Read whether an AI agent can reach checkout for a brand the ARC Index already lists. No login and no new scan. Pass a brand, URL, or category. Returns the score, evidence, and both lanes: the agent-catalog HTTP check and the browser cart. The JSON field `agents_can_buy` is true when the catalog returned a checkout link or a browser shopper added the product to the cart. ARC stops before payment. It is not a completed order. The catalog check does not change the score. A missing score is not a z…
can_agent_checkout — Check if an AI agent can reach checkout on a store before trying. Live HTTP check of a public homepage or product URL: catalog, product, checkout link, UCP profile, blocks, and one fix. No login, model call, payment, or browser scan. Cached per host for 24 hours. A checkout link means reach checkout, not a completed order. Results are advisory. ARC stops before payment. a check reads saved results and does not prove an agent completed checkout
precheck — Check if an AI agent can reach checkout on a store before trying. Saved automated HTTP check for a product or store URL. Uses ARC's saved directory, rails, store answers and check history. When those have no row, uses the plain-HTTP checker. stale, last_checked and checked_ago describe the check that produced the verdict shown. lastReachableCheck is a separate, newer plain-HTTP time. It does not re-verify the checkout link or rails. Does not fetch the store and does not start a scan. The saved …
find_agent_ready_stores — Find stores where a saved check shows an AI agent can reach checkout, for running shoes, beauty, clothing, home goods, or another product need. Reads real HTTP agent-catalog checks from the last thirty days whose catalog found a product and returned a checkout link. This is not a completed order. One tested product is not a promise about another item. No login, browser scan, or model call. Results are advisory. ARC stops before payment. a check reads saved results and does not prove an agent co…
agent_commerce_adoption — Read ARC's agent commerce adoption counts, category and commerce platform rates from saved HTTP checks, including Checkout WebMCP among measured Shopify checkouts, with unknown and not checked separate; shopper approval required. Curated sample, not all e-commerce. No store requests or model calls. a check reads saved results and does not prove an agent completed checkout
product_data_check — Free latest saved product data and return/shipping policy check from the store's pages and structured data. Reads history only; no store fetch or model call. A missing result is not a zero. a check reads saved results and does not prove an agent completed checkout
google_checkout_readiness — Read saved public Google agentic checkout readiness checks for a store. Free; no new scan or paid calls. Merchant Center feed eligibility cannot be checked from outside. Not Google approval or certification. a check reads saved results and does not prove an agent completed checkout
get_agent_facts — Read free ARC agent facts for a store or product with no login. Returns TypeSafe Jev typed decisions (use-case mention, price clarity, agent-friendly description, cart-blocker suspicion, readiness score) from an HTTP scrape. Not a browser session and not any third-party agent product; ARC's browser cart tests (ARC browser shoppers A–E) are separate. JSON: GET /api/agent-facts?host= a check reads saved results and does not prove an agent completed checkout
list_category_agent_facts — List free ARC agent facts by category (beauty, footwear, apparel, …) with no login. Ranked by newest real Jev scores. JSON: GET /api/agent-facts?category=beauty a check reads saved results and does not prove an agent completed checkout
dataset_info — Latest open ARC dataset snapshot (start with store_answers: one plain answer per store on whether AI agents can find products and get a checkout link): immutable versioned download URLs plus latest/ aliases (CSV and Parquet), row counts, method version and licence (CC-BY-4.0, attribution ARC, arcreport.ai). Reads only. a check reads saved results and does not prove an agent completed checkout
protocol_matrix — Read ARC's neutral Protocol Matrix: for UCP, ACP, PAP, WebMCP, MCP and agent payment protocols, how many checked stores declare, validate, answer and transact, with evidence labels (Measured / Inferred / Not measured). Saved checks only; no store requests or model calls. CC-BY-4.0. a check reads saved results and does not prove an agent completed checkout
agent_leaderboard — Read ARC's open agent leaderboard: cart success over the fixed ARC-100 v1 test set for each agent path ARC measures (ARC browser shoppers A-E, the UCP path, the storefront MCP path), with n, dates, evidence labels and Wilson 95% intervals, plus unverified outside submissions. Saved results only; no store requests or model calls. CC-BY-4.0. a check reads saved results and does not prove an agent completed checkout
submit_leaderboard_run — Submit your agent's run against ARC-100 v1 to ARC's open leaderboard. Free. The run is listed as 'unverified' until ARC re-runs a sample. Format: arc-leaderboard-submission/v1 (see /leaderboard/spec). Runs must stop before payment. Limit 5 per network per day. Same as POST /api/leaderboard/submit. a check reads saved results and does not prove an agent completed checkout
submit_store — Add stores to ARC's free, open agent-commerce directory (CC-BY dataset). Pass url for one store or hosts for up to 50. Each new host is validated (live HTTPS, not parked, not redirecting to another brand); accepted hosts are queued for ARC's plain-HTTP rails checks (UCP, WebMCP, MCP, policies, product data) and appear in the dataset with source=submitted. No model calls, no login. Rate limited per caller. a check reads saved results and does not prove an agent completed checkout
store_card — Read a public store card and saved brand claim. No outbound fetch or model calls. Brand statements are from the brand and not measured by ARC; claims never change scores. a check reads saved results and does not prove an agent completed checkout
validate_ucp_profile — Validate a Universal Commerce Protocol (UCP) business profile against the published UCP JSON Schema (current release) and spec rules: authority binding, https endpoints, orphaned extensions and, for a URL, hosting headers (no redirects, Cache-Control public max-age>=60). Pass url (store host, homepage or profile URL; /.well-known/ucp is added for a homepage) or profile (the JSON). Returns errors, warnings and info, each with a path and the spec section. Free, no login, no model call. Validation…

kind A2A Agent Card

name A2A Agent Card

summary A2A Agent Card

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when	check	result	http	latency	detail
1 h ago	a2a card	ok	200	164 ms	card: ARC · 16 skills
9 h ago	a2a card	ok	200	143 ms	card: ARC · 16 skills
16 h ago	a2a card	ok	200	281 ms	card: ARC · 16 skills
24 h ago	a2a card	ok	200	801 ms	card: ARC · 16 skills
2 d ago	a2a card	failed	503	12 ms	http 503
2 d ago	a2a card	ok	200	73 ms	card: ARC · 16 skills
2 d ago	a2a card	ok	200	167 ms	card: ARC · 16 skills
2 d ago	a2a card	ok	200	296 ms	card: ARC · 16 skills
3 d ago	a2a card	ok	200	39 ms	card: ARC · 16 skills
3 d ago	a2a card	ok	200	246 ms	card: ARC · 16 skills

ARC

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