NestDaddy

X402 Mcp Server

io.github.Jannis-E/x402-mcp-server ยท v1.0.5

Pay-per-call x402 tools on Base: web extract/render, burn-once secret vault, chart, GeoTIFF

Connect Runs on your machine

Terminal
claude mcp add x402-mcp-server -e BASE_PRIVATE_KEY=<BASE_PRIVATE_KEY> -- npx -y [email protected]
claude_desktop_config.json
{
  "mcpServers": {
    "x402-mcp-server": {
      "command": "npx",
      "args": [
        "-y",
        "[email protected]"
      ],
      "env": {
        "BASE_PRIVATE_KEY": "<BASE_PRIVATE_KEY>"
      }
    }
  }
}
~/.cursor/mcp.json
{
  "mcpServers": {
    "x402-mcp-server": {
      "command": "npx",
      "args": [
        "-y",
        "[email protected]"
      ],
      "env": {
        "BASE_PRIVATE_KEY": "<BASE_PRIVATE_KEY>"
      }
    }
  }
}
.vscode/mcp.json
{
  "servers": {
    "x402-mcp-server": {
      "type": "stdio",
      "command": "npx",
      "args": [
        "-y",
        "[email protected]"
      ],
      "env": {
        "BASE_PRIVATE_KEY": "<BASE_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
BASE_PRIVATE_KEY
Required, secret
0x-prefixed EVM private key, wallet funded with Base USDC -- signs EIP-3009 payments locally.

Details

Package[email protected] (NPM, stdio)
First published23 Sep 2026
Last updated23 Sep 2026
Registry nameio.github.Jannis-E/x402-mcp-server

More data and analytics servers See all

Listing data from the official MCP registry. Status and tools from NestDaddy's daily check. Browse all MCP servers.