Railhook for Gemini CLI

io.github.vadymkykalo/railhook

Webhooks for AI agents: send events, manage endpoints, inspect and retry deliveries.

client:Gemini CLI transport:streamable-http runtime:npm

Install Railhook in Gemini CLI

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

{
  "mcpServers": {
    "railhook": {
      "httpUrl": "https://railhook.io/mcp"
    }
  }
}

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