go-google-mcp

Unified Model Context Protocol (MCP) server for Google Workspace.

go-google-mcp is a powerful, secure, and extensible Go-based tool that allows AI agents (like Claude Desktop, Cursor, or Gemini CLI) to interact directly with your Google services through a standardized interface.

🚀 Features

Interact with Google Workspace using natural language through these integrated services:

• 📂 Google Drive: Powerful search, read text content, create files/folders, update content, move, share, and trash.
• 📧 Gmail: Search/list threads, read full conversations, create drafts, move to trash, and send emails.
• 📅 Google Calendar: List upcoming events, create new meetings (with attendees), and delete events.
• 📊 Google Sheets: Create spreadsheets, read ranges, append rows, and update specific cells.
• 📄 Google Docs: Create new documents and read full document text.
• 👥 Google People: List contacts and create new connections.
• ✅ Google Tasks: List task lists and tasks, create, update, and delete tasks (with optional status/due filtering).

🛠 Installation

Ensure you have Go installed (version 1.24 or later recommended).

go install github.com/matheusbuniotto/go-google-mcp/cmd/go-google-mcp@latest

🔐 Authentication

This tool supports both User OAuth 2.0 (best for personal/CLI use) and Service Accounts (best for server/automated use).

Option 1: User OAuth (Recommended)

1. Create Credentials: Go to the Google Cloud Console, enable the necessary APIs (Drive, Gmail, etc.), and create a Desktop App OAuth client.
2. Download JSON: Save the client secrets file as client_secrets.json.
3. One-time Login:

   go-google-mcp auth login --secrets path/to/client_secrets.json

   This securely saves your token to ~/.go-google-mcp/.

Option 2: Service Account

1. Download your Service Account JSON key.
2. Run with the -creds flag:

   go-google-mcp -creds path/to/service-account.json

🤖 Usage with AI Agents

Claude Desktop / Cursor

Add the following to your claude_desktop_config.json (or your IDE's MCP settings):

{
  "mcpServers": {
    "google-workspace": {
      "command": "go-google-mcp",
      "args": []
    }
  }
}

Gemini CLI

gemini mcp add google-workspace $(which go-google-mcp)

🛠 Development

git clone https://github.com/matheusbuniotto/go-google-mcp.git
cd go-google-mcp
go build ./cmd/go-google-mcp

📜 License

MIT License. See LICENSE for details.