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402MCP.org — HTTP 402 & Agent Payment Registry

org.402mcp/registry

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

Install

Add the config to your client settings. Replace values in <angle brackets> with your own.

claude_desktop_config.json

{
  "mcpServers": {
    "registry": {
      "command": "npx",
      "args": [
        "-y",
        "@402mcp/mcp@1.1.1"
      ],
      "env": {
        "MCP_402_OFFLINE": "<MCP_402_OFFLINE>"
      }
    }
  }
}

Details

Name: org.402mcp/registry
Version: 1.1.1
Updated: Oct 16, 2026
Source: Official MCP Registry
Repository: https://github.com/402MCP/402mcp
Website: https://402mcp.org