# 402mcp (402mcp.org)

Indexes and scores 14 payment solutions for AI agents across six criteria, with a leaderboard and an MCP server.

- Atlas card: https://inite.ai/en/atlas/402mcp.org
- Site: https://402mcp.org
- For: developers choosing payment rails for autonomous AI agents paying over HTTP 402
- Categories: finance
- Use 0/100 · alive 100/100

## Used for

- compare agent payment protocols on custody and fees
- integrate agent payments through an MCP server config
- pick a Lightning or stablecoin rail for paid API calls

## Price

Not read yet.

## For developers

- OpenAPI: https://402mcp.org/openapi.json (12 paths)
- MCP server: org.402mcp/registry (namespace; open on 2026-10-27, 7 tools)
- Read 2026-10-27

## MCP server, measured daily

Server: https://402mcp.org/api/v1/mcp, checked every day since 2026-10-27 (2 checks).

- Answered: measuring, 2 daily checks so far
- Median first answer: 877 ms
- Sign-in: none
- Context its tool definitions take: about 1486 tokens (7 tools)
- Tool definitions: A, 98/100
- Failing "params_described": 1 of 7 tools
- Method: https://inite.ai/en/atlas/mcp/report

## Your data

- Certifications stated: none
- Training on your data: no (https://402mcp.org/privacy)
- Read 2026-10-27

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Source: INITE Atlas, https://inite.ai/en/atlas/402mcp.org. JSON: https://inite.ai/api/atlas/402mcp.org. MCP: https://inite.ai/api/mcp (atlas_lookup).