Gumball for Gemini CLI

io.github.thinkmojo/gumball

Ring a real siren light from your AI agent: spin it, play a sound, set the volume, mute it.

client:Gemini CLI transport:streamable-http

Install Gumball in Gemini CLI

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

{
  "mcpServers": {
    "gumball": {
      "httpUrl": "https://app.getgumball.com/mcp"
    }
  }
}

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