X402engine MCP Server

What the code does

We read the source, 21 h ago · rules 3dff92dd89df

What this server is able to do. For an MCP server this is often the job itself — a terminal server runs commands because that is what it is for. Listed so you know what you are plugging in, not as an accusation.

…v=(0,lt.or)(v,...l.map(x=>(0,lt._)`${(0,Fs.usePattern)(t,x)}.test(${g})`))),(0,lt.not)(v)}function f(g){e.code((0,lt._)`delete ${o}[${g}]`)}function p(g){if(c.removeAdditional==="all"||c.removeAdditional&&r===!1){f(g);return}if(r===!1){t.setParams({additionalProperty:g}),t.error(…

Is this your server and something here is wrong? Tell us — corrections are free and do not require a plan.

Connect this server

This server runs on your own machine — install it with the package manager and the client starts it for you. Package name taken from the official registry entry.

claude mcp add x402engine-mcp -- npx -y x402engine-mcp

{
  "mcpServers": {
    "x402engine-mcp": {
      "args": [
        "-y",
        "x402engine-mcp"
      ],
      "command": "npx"
    }
  }
}

[mcp_servers.x402engine-mcp]
command = "npx"
args = ["-y", "x402engine-mcp"]

{
  "mcpServers": {
    "x402engine-mcp": {
      "args": [
        "-y",
        "x402engine-mcp"
      ],
      "command": "npx"
    }
  }
}

{
  "mcpServers": {
    "x402engine-mcp": {
      "args": [
        "-y",
        "x402engine-mcp"
      ],
      "command": "npx"
    }
  }
}

This one needs environment variables set before it will start: X402_BASE_URL (Gateway URL (default: https://x402engine.app)), X402_DEV_BYPASS (Dev bypass secret to skip payments during testing), X402_PAYMENT_HEADER (Pre-signed x402 payment header for automatic payment). The author declared them in the registry entry; get the values from the project itself.