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Is x402-audit-mcp reliable?

Reliable (measured) Yes. Faceabot measured x402-audit-mcp 20 times: 100% of checks succeeded, including the last 20 in a row (last check 2026-10-19 12:40 UTC). It also does the job: its real read-only task worked 11 of 11 times.

Last check: 2026-10-19 12:40 UTC · answered in 6192 ms · remote (no install)

En français : Fiable (mesuré). Faceabot teste cet outil lui-même, en continu, sans dépendre de ce que son auteur affirme.

What it does

Audits any URL for HTTP 402 x402 V2 compliance, PAYMENT-REQUIRED headers, Bazaar schema, and MCP.

Source: official MCP registry (registry.modelcontextprotocol.io) · version 1.1.1
Connect your agent
{
  "mcpServers": {
    "x402-audit-mcp": {
      "url": "https://x402-audit-72343955726.us-central1.run.app/mcp/x402-audit"
    }
  }
}
Or ask Faceabot first: MCP tool check_reliability {"id":"io.github.robertoyanguas-ops/x402-audit-mcp"} on https://faceabot.com/api/mcp.
Does it actually do the job?

Does the job (tested) — Faceabot asked get_agent_wallet_status to do a small read-only task 11 time(s): 11 returned a real result, the last 11 in a row. Last result: ok in 4913 ms.

Sample input: {}. A success means a non-empty result without error; it does not certify the accuracy or safety of the content.
Other proven tools for the same job

x402 endpoint checker Reliable (measured) · 100%
Test any x402 paid URL without paying: 402, PAYMENT-REQUIRED, USDC, amounts, payTo, EIP-712, CORS. · https://x402-seller-kit.soloearn.workers.dev/mcp

402MCP.org — HTTP 402 & Agent Payment Registry Reliable (measured) · 100%
Decode HTTP 402 challenges (L402, x402, MPP) and choose agent payment rails from an open registry. · https://402mcp.org/api/v1/mcp

Picked from Faceabot's live measurements. Or let Faceabot choose: GET https://faceabot.com/resolve?need=…
Faceabot measurements
WhenAnswersReal taskLatency
2026-10-19 12:40 UTC✅ ok✅ done6192 ms
2026-10-18 20:35 UTC✅ ok✅ done5019 ms
2026-10-18 07:20 UTC✅ ok✅ done4887 ms
2026-10-17 23:30 UTC✅ ok✅ done7156 ms
2026-10-17 15:20 UTC✅ ok✅ done5641 ms
2026-10-17 07:15 UTC✅ ok✅ done5454 ms
2026-10-16 23:25 UTC✅ ok✅ done5195 ms
2026-10-16 16:15 UTC✅ ok✅ done6504 ms
2026-10-16 09:15 UTC✅ ok✅ done5598 ms
2026-10-16 02:20 UTC✅ ok✅ done6821 ms
2026-10-15 19:25 UTC✅ ok✅ done6517 ms
2026-10-15 12:40 UTC✅ ok—3667 ms
2026-10-15 06:05 UTC✅ ok—3438 ms
2026-10-14 23:35 UTC✅ ok—3489 ms
2026-10-14 17:15 UTC✅ ok—6013 ms
2026-10-14 10:45 UTC✅ ok—3487 ms
2026-10-14 04:16 UTC✅ ok—8771 ms
2026-10-13 21:40 UTC✅ ok—6488 ms
2026-10-13 15:35 UTC✅ ok—7999 ms
2026-10-13 09:31 UTC✅ ok—9128 ms
Method: MCP initialize then tools/list from Faceabot (FaceabotProbe/1.0), plus one read-only tool call with a neutral input when the server declares one, repeated over time. This checks that the server is up and speaks MCP correctly; it does not certify the quality or safety of each tool. How measurement works.

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