ARC (arcreport.ai): can an agent reach checkout?

Measured conclusion: Deep-tested. L2 outcome: tools_ok.

Free open check: can an AI agent reach checkout on this store? Advisory; ARC stops before payment.

Add to your agent

Copy this into your MCP client config:

{
  "mcpServers": {
    "ARC (arcreport.ai): can an agent reach checkout?": {
      "url": "https://www.arcreport.ai/api/ask",
      "transport": "streamable-http"
    }
  }
}

Measured tools (16)

• precheck read-only

  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 Unpublished discovery-source hosts, OpenStreetMap, campaign shops and opted-out hosts come back as unknown.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.

  Parameters:

  • url (required) — string — Product or store URL, such as https://allbirds.com/products/shoe.

  Hints: read-only yes · destructive no · idempotent yes · open-world no

• find_agent_ready_stores read-only

  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.

  Parameters:

  • q — string — Product need, such as skincare or camping gear
  • limit — integer
  • category — string — Category slug or shopper words such as running shoes

  Hints: read-only yes · destructive no · idempotent yes · open-world no

• 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.

  Parameters:

  • url (required) — string — Public store homepage or product URL

  Hints: read-only no · destructive no · idempotent yes · open-world yes

• 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.

  Parameters:

  • q — string — Free-text brand, product, or category query.
  • url — string — Brand, store, or product URL already on the ARC Index.
  • brand — string — Brand name, e.g. Allbirds.
  • category — string — Index category or shopper words, e.g. footwear, running shoes, leggings.

  Hints: read-only not declared · destructive not declared · idempotent not declared · open-world not declared

• agent_commerce_adoption read-only

  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.

  Hints: read-only yes · destructive no · idempotent yes · open-world no

• product_data_check read-only

  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.

  Parameters:

  • url — string
  • host — string

  Hints: read-only yes · destructive no · idempotent yes · open-world no

• 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.

  Parameters:

  • host (required) — string — Store host or URL

  Hints: read-only not declared · destructive not declared · idempotent not declared · open-world not declared

• 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=

  Parameters:

  • url — string — Store or product URL
  • host — string — Store hostname, e.g. allbirds.com
  • slug — string — ARC Index slug, e.g. allbirds

  Hints: read-only not declared · destructive not declared · idempotent not declared · open-world 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

  Parameters:

  • limit — number — 1–50, default 20
  • category — string — Category id or words, e.g. beauty, running shoes

  Hints: read-only not declared · destructive not declared · idempotent not declared · open-world not declared

• dataset_info read-only

  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.

  Hints: read-only yes · destructive no · idempotent yes · open-world no

• protocol_matrix read-only

  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.

  Parameters:

  • protocol — string — Optional: one protocol id.

  Hints: read-only yes · destructive no · idempotent yes · open-world no

• agent_leaderboard read-only

  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.

  Parameters:

  • include_stores — boolean — Also return the per-store result grid (100 rows).

  Hints: read-only yes · destructive no · idempotent yes · open-world no

• 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.

  Parameters:

  • spec (required) — string
  • test_set (required) — string
  • agent (required) — object
  • run (required) — object
  • results (required) — array
  • contact — string — Optional and private: how ARC can reach you to arrange verification.

  Hints: read-only no · destructive no · idempotent yes · open-world no

• 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.

  Parameters:

  • url — string
  • hosts — array
  • category — string

  Hints: read-only no · destructive no · idempotent yes · open-world yes

• store_card read-only

  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.

  Parameters:

  • host (required) — string — Store host or URL.

  Hints: read-only yes · destructive not declared · idempotent not declared · open-world not declared

• validate_ucp_profile read-only

  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=

  Parameters:

  • url — string — Store host, homepage or profile URL, e.g. allbirds.com
  • profile — The profile JSON (object or string) to validate without fetching.

  Hints: read-only yes · destructive not declared · idempotent not declared · open-world yes

Publisher website

Measured by MCPYP probing. Untested fields are omitted, never estimated. Listing is always free; MCPYP never proxies calls or stores user tokens.