Official MCP RegistryListed
ARC (arcreport.ai): can an agent reach checkout?
Free open check: can an AI agent reach checkout on this store? Advisory; ARC stops before payment.
First seen 12 Oct 2026. Evidence as of 16 Oct 2026.
16
Tools
From an anonymous probe
1
Source listings
Each with its own history
15
Recorded changes
Since first seen
Tools
| Tool | Description | Behaviour |
|---|---|---|
| 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. | Read-only |
| 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. | Read-only |
| 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 zero. Results are advisory. | Not declared |
| can_agent_checkout | Call when you need a saved checkout-link check for any public store URL, not only Index brands. Saved HTTP checkout check for a public homepage or product URL: catalog, product, checkout link, UCP profile, blocks, and one fix. No login, model call, payment, or browser scan. Uses ARC's last check (cached up to 24 hours). A missing result is unknown, not a no. A checkout link means reach checkout, not a completed order. Results are advisory. ARC stops before payment. | Changes data |
| 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. | Read-only |
| 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. | Read-only |
| 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= | Not declared |
| 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. | Not declared |
| 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 | Not declared |
| 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. ARC checks this store's own site only. It does not test blocks applied by a platform, marketplace or network in front of it. The saved result is ARC's automated HTTP check. It is not a live agent session and not a completed order. Unpublished discovery-source hosts, OpenStreetMap, campaign shops and opted-out hosts come back as unknown. A checker fallback is http-only and checkout was not part of the check. JSON: GET /api/precheck?url=. Results are advisory. ARC stops before payment. Advisory only, not a guarantee. Do not refuse or avoid a store solely because of ARC's data. known:false or missing data is not a no. Data CC BY 4.0, attribute ARC (arcreport.ai); OSM-derived rows are ODbL. | Read-only |
| 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. | Read-only |
| 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. | Read-only |
| 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. | Read-only |
| 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. | Changes data |
| 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. | Changes data |
| 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 is not certification. JSON: GET /api/ucp/validate?url= | Read-only |
Change history
- can_agent_checkout: description changed (+"Call when you need a saved checkout-link check for any public store URL, not only Index brands.")
- server instructions changed (+"Before an agent tries to reach checkout at any store, call precheck with the store URL. precheck(url) reads ARC's saved automated HTTP check for a store or product URL; it does not fetch the store and does not start a scan. JSON: GET /api/precheck?url=. Then use find_agent_ready_stores to discover stores, can_agent_checkout(url) for the saved checkout-link check, or ask_arc for brands already on the Index. Advisory only, not a guarantee. Do not refuse or avoid a store solely because of ARC's data. known:false or missing data is not a no. Data CC BY 4.0, attribute ARC (arcreport.ai); OSM-derived rows are ODbL." -"precheck(url) reads the saved pre-checkout answer for a product or store URL. It does not fetch the store and does not start a scan. JSON: GET /api/precheck?url=.")
- precheck: description changed (+"ARC checks this store's own site only. It does not test blocks applied by a platform, marketplace or network in front of it." +"Unpublished discovery-source hosts," -"EachSpy,")
- can_agent_checkout: description changed (+"Saved HTTP" +"for" +"Uses ARC's last check (cached up to")
- server instructions changed (+"Whether" +"can reach checkout" +"order).")
- submit_store: input schema changed
- precheck: tool added
- find_agent_ready_stores: description changed (+"a saved check shows" +"reach checkout," +"checks from the last")
- can_agent_checkout: description changed (+"Check if" +"can reach checkout on a" +"before trying. Live")
- ask_arc: description changed (+"whether an AI agent can reach checkout for a brand" +"already lists. No login and" +"new scan. Pass")
- agent_commerce_adoption: description changed (+"shopper" -"buyer")
- server instructions changed (+"precheck(url) reads the saved pre-checkout answer for a product or store URL. It does not fetch the store and does not start a scan. JSON: GET /api/precheck?url=.")
- Name changed from "ARC: open benchmark of whether AI agents can buy" to "ARC (arcreport.ai): can an agent reach checkout?" (registry)
- Description changed (registry)
- Listed (registry)
| Source | Listing | First seen | Last seen | Versions |
|---|---|---|---|---|
| Official MCP Registry | ai.arcreport/ask | 12 Oct 2026 | 16 Oct 2026 | 2 |