PennyRail Transaction Router for Gemini CLI

io.github.clay-swartz/pennyrail

Find and quote agent capabilities, then pay only the selected x402 execution URL.

client:Gemini CLI transport:streamable-http

Install PennyRail Transaction Router in Gemini CLI

~/.gemini/settings.json · windows: %USERPROFILE%\.gemini\settings.json

{
  "mcpServers": {
    "pennyrail": {
      "httpUrl": "https://pennyrail.vercel.app/api/mcp"
    }
  }
}

Gemini expands $VAR and ${VAR} inside env values, so a secret can live in your shell rather than this file. Gemini CLI docs