tollbooth x402 for Claude Desktop

io.github.solomonisblack/tollbooth-x402

Discover, quote, verify & self-check 56 x402 pay-per-call finance/tax calculators for AI agents.

client:Claude Desktop transport:stdio runtime:npm

Install tollbooth x402 in Claude Desktop

~/Library/Application Support/Claude/claude_desktop_config.json · windows: %APPDATA%\Claude\claude_desktop_config.json

{
  "mcpServers": {
    "tollbooth-x402": {
      "command": "npx",
      "args": [
        "-y",
        "tollbooth-x402"
      ]
    }
  }
}

Settings → Developer → Edit Config opens this file. Restart the app after saving. Claude Desktop docs