All servers · Agent payments (x402) · Payments & accounting

402xAgent

io.github.withgrokbot/verified-catalog · v0.32.2

Measured by MCP Station

Description written by the publisher, not verified

Check an x402 endpoint before your agent pays: pay, skip or recheck. Plus a verified x402 catalog.

Connect

claude mcp add --transport http verified-catalog https://api.402xagent.com/mcp

{
  "mcpServers": {
    "verified-catalog": {
      "url": "https://api.402xagent.com/mcp"
    }
  }
}

claude mcp add --transport http verified-catalog https://verified-catalog-lookup.withgrokbot.workers.dev/mcp

{
  "mcpServers": {
    "verified-catalog": {
      "url": "https://verified-catalog-lookup.withgrokbot.workers.dev/mcp"
    }
  }
}

Tools as reported by the server

• search_catalog
  Browse or keyword-search the verified catalog of pay-per-call (x402) agent services. Use it when you don't know the task name or want to see what exists; use lookup to rank endpoints for a known task at a max price, and get_service for one id's full record. Read-only. No auth or API key; free, no qu
• get_service
  Fetch the complete catalog record for one known service id (e.g. from search_catalog or lookup results). Use search_catalog to find ids and lookup to rank services for a task; get_service has no per-call receipts, so for receipts with tx and Basescan links call lookup with endpoint=<id>. Read-only.
• lookup
  Rank x402 endpoints for a known task at or under a price: "which endpoint should I pay for task X at <= $Y?". Prefer it over search_catalog (keyword browsing, unranked) and get_service (one id's raw record). No auth or API key. Calls the hosted lookup service as client=vc-mcp; all MCP users share th
• get_overnight_cos_pack
  Buy and download the Overnight Chief of Staff Setup Pack ($9 USDC on Base via x402): 5 ready-to-paste bot prompts, an HTML morning-briefing template, and a PDF setup guide. Always paid — no free quota. Call without PAYMENT-SIGNATURE to receive payment requirements and the HTTP endpoint URL. Agents p
• get_receipt
  Free: read a public 402xAgent receipt. Give id (sc-... from endpoint_spot_check's receipt_id, or a 10-hex crawl id) or url (latest live + crawl receipt for that URL). Receipts hold the listing URL, the live 402 terms, verdict, reason, reason_code, confidence, history summary, timestamp, and a status
• endpoint_spot_check
  Decision-shaped 402xAgent check of a public URL (private, loopback and link-local addresses blocked on every redirect hop) for an x402 PAYMENT-REQUIRED / 402 challenge. Every answer has reason_code (stable code) and confidence (high|medium|low); rules: https://402xagent.com/rules.json. History: stab
• payment_status
  After you pay an x402 endpoint (Base USDC, EIP-3009 exact): did the payment land, and is it safe to sign a new one? Give payment_payload (the base64 PAYMENT-SIGNATURE you sent), or tx_hash, or from + nonce (+ valid_before). Returns status landed|not_landed|pending|canceled|unknown, safe_to_retry_sam
• x402_hygiene
  Free x402 hygiene score for an endpoint you run: {score, grade, deductions[{code, points, fix}]} from normal unpaid requests (never pays, never sends bad params). 20 per day per network, cached 24 h. Grades are returned only to you.
• discover
  Free discovery of x402 pay-per-call endpoints from 402xAgent's weekly crawl. Returns up to 20 endpoints matching the words in q (URL or source list), each with the verified (quoted) price, network, last_checked, stale flag, verdict pay|skip|recheck with its reason, and a receipt. Skips are included
• endpoint_report
  Paid ($0.05 USDC on Base via x402, no free tier): the exact committed snapshots behind endpoint_spot_check's locked teasers: which payment terms changed in the last 30 days, when, from what to what, and the full hygiene checks. Pass the url and the commitment_ref from the free answer's locked_commit

Tool changes

• 2026-10-24: search_catalog, get_service, lookup, get_overnight_cos_pack, get_receipt, endpoint_spot_check, payment_status, x402_hygiene, discover, endpoint_report
• 2026-10-23: search_catalog, get_service, lookup, get_overnight_cos_pack, get_receipt, endpoint_spot_check, payment_status, x402_hygiene, discover, endpoint_report
• 2026-10-22: search_catalog, get_service, lookup, get_overnight_cos_pack, get_receipt, endpoint_spot_check, payment_status, discover, endpoint_report
• 2026-10-21: search_catalog, get_service, lookup, get_overnight_cos_pack, get_receipt, endpoint_spot_check, payment_status, discover
• 2026-10-17: search_catalog, get_service, lookup, get_overnight_cos_pack, get_receipt, endpoint_spot_check, payment_status
• 2026-10-16: search_catalog, get_service, lookup, get_overnight_cos_pack, get_receipt, endpoint_spot_check

Repository · Website · JSON · Text for agents · Registry updated 2026-10-13