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X402 Mcp Server

io.github.jmthomasofficial/x402-mcp-server ยท v2.0.1

JMT x402: 35 pay-per-call Base/USDC tools for agents, auto-paid via x402 v2. No API key.

Connect Runs on your machine

Terminal
claude mcp add x402-mcp-server -e JMT_X402_PRIVATE_KEY=<JMT_X402_PRIVATE_KEY> -- npx -y @jmthomasofficial/[email protected]
claude_desktop_config.json
{
  "mcpServers": {
    "x402-mcp-server": {
      "command": "npx",
      "args": [
        "-y",
        "@jmthomasofficial/[email protected]"
      ],
      "env": {
        "JMT_X402_PRIVATE_KEY": "<JMT_X402_PRIVATE_KEY>"
      }
    }
  }
}
~/.cursor/mcp.json
{
  "mcpServers": {
    "x402-mcp-server": {
      "command": "npx",
      "args": [
        "-y",
        "@jmthomasofficial/[email protected]"
      ],
      "env": {
        "JMT_X402_PRIVATE_KEY": "<JMT_X402_PRIVATE_KEY>"
      }
    }
  }
}
.vscode/mcp.json
{
  "servers": {
    "x402-mcp-server": {
      "type": "stdio",
      "command": "npx",
      "args": [
        "-y",
        "@jmthomasofficial/[email protected]"
      ],
      "env": {
        "JMT_X402_PRIVATE_KEY": "<JMT_X402_PRIVATE_KEY>"
      }
    }
  }
}

Replace the values in angle brackets with your own. Keys stay on your machine; we never see them.

Tools

This server runs locally, so its tools are listed by your MCP client once it starts.

Environment variables

NameDescription
JMT_X402_PRIVATE_KEY
Optional
Base-mainnet wallet private key (funded with USDC). Used only to sign x402 payment authorizations. Never logged.

Details

Package@jmthomasofficial/[email protected] (NPM, stdio)
First published12 Jul 2026
Last updated12 Jul 2026
Registry nameio.github.jmthomasofficial/x402-mcp-server

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