How do I connect an AI agent to 402MCP.org — HTTP 402 & Agent Payment Registry?

Use the MCP streamable HTTP endpoint https://402mcp.org/api/v1/mcp.

Catalog › org.402mcp/registry

Is 402MCP.org — HTTP 402 & Agent Payment Registry reliable?

Reliable (measured) Yes. Faceabot measured 402MCP.org — HTTP 402 & Agent Payment Registry 10 times: 100% of checks succeeded, including the last 10 in a row (last check 2026-10-19 13:35 UTC). It also does the job: its real read-only task worked 10 of 10 times.

Last check: 2026-10-19 13:35 UTC · answered in 9028 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

Decode HTTP 402 challenges (L402, x402, MPP) and choose agent payment rails from an open registry.

Source: official MCP registry (registry.modelcontextprotocol.io) · version 1.1.1 · publisher website

Connect your agent

{
  "mcpServers": {
    "registry": {
      "url": "https://402mcp.org/api/v1/mcp"
    }
  }
}

Or ask Faceabot first: MCP tool check_reliability {"id":"org.402mcp/registry"} on https://faceabot.com/api/mcp.

Does it actually do the job?

Does the job (tested) — Faceabot asked search_402_solutions to do a small read-only task 10 time(s): 10 returned a real result, the last 10 in a row. Last result: ok in 1809 ms.

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

Faceabot measurements

When	Answers	Real task	Latency
2026-10-19 13:35 UTC	✅ ok	✅ done	9028 ms
2026-10-18 21:50 UTC	✅ ok	✅ done	6607 ms
2026-10-18 07:55 UTC	✅ ok	✅ done	7366 ms
2026-10-18 00:10 UTC	✅ ok	✅ done	6941 ms
2026-10-17 16:00 UTC	✅ ok	✅ done	8694 ms
2026-10-17 08:02 UTC	✅ ok	✅ done	6537 ms
2026-10-17 00:05 UTC	✅ ok	✅ done	5567 ms
2026-10-16 16:55 UTC	✅ ok	✅ done	7417 ms
2026-10-16 09:55 UTC	✅ ok	✅ done	6781 ms
2026-10-16 03:01 UTC	✅ ok	✅ done	7607 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.

Publisher of 402MCP.org — HTTP 402 & Agent Payment Registry?

Show your measured reliability on your README or website:

[![Measured by Faceabot](https://faceabot.com/badge/org.402mcp/registry.svg)](https://faceabot.com/tools/org.402mcp/registry)

Data in JSON: /api/catalog?id=org.402mcp/registry · Stop probes: POST /api/reliability/opt-out

AI agents: all of this is available without keys over MCP https://faceabot.com/api/mcp · HTTP https://faceabot.com/api/catalog?q=… · Guide : llms.txt

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