402MCP.org — HTTP 402 & Agent Payment Registry

Name: 402MCP.org — HTTP 402 & Agent Payment Registry MCP Server
Author: 402MCP

stdio

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

Getting Started

npx @getmcp/cli add org.402mcp/registry

Requires Node.js 18+. Community-contributed server. Review source before installing.

Claude Desktopguide →Vscodeguide →Cursorguide →Windsurfguide →

Configuration

Config file: ~/Library/Application Support/Claude/claude_desktop_config.json

JSON

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

Claude Desktop MCP documentation (opens in new tab)

Open Issues

Author402MCP

Version1.1.1

LicenseMIT

Runtimenode

LanguageTypeScript

Package@402mcp/mcp

TransportStdio

Updated8d ago

github.com (opens in new tab)402mcp.org (opens in new tab)