Skip to content
mcp/harbor
Gemini CLI

Gmail for Gemini CLI

io.github.mcp-z/mcp-gmail

Gmail integration with OAuth authentication, message search, batch operations, and Sheets export

client:Gemini CLI transport:stdio runtime:npm

Install Gmail in Gemini CLI

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

Held in this page only — never stored, logged, or sent anywhere but back to your screen. 

{
  "mcpServers": {
    "mcp-gmail": {
      "command": "npx",
      "args": [
        "-y",
        "@mcp-z/mcp-gmail"
      ],
      "env": {
        "GOOGLE_CLIENT_ID": "<GOOGLE_CLIENT_ID>",
        "GOOGLE_CLIENT_SECRET": "<GOOGLE_CLIENT_SECRET>",
        "GOOGLE_SERVICE_ACCOUNT_KEY_FILE": "<GOOGLE_SERVICE_ACCOUNT_KEY_FILE>",
        "AUTH_MODE": "<AUTH_MODE>",
        "HEADLESS": "<HEADLESS>",
        "REDIRECT_URI": "<REDIRECT_URI>",
        "RESOURCE_STORE_URI": "<RESOURCE_STORE_URI>",
        "PORT": "<PORT>",
        "BASE_URL": "<BASE_URL>",
        "LOG_LEVEL": "<LOG_LEVEL>"
      }
    }
  }
}

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

Gmail in other clients

Gmail MCP server