gogcli-mcp

A monorepo of Model Context Protocol servers that give Claude natural-language access to Google Workspace via gogcli.

[!WARNING] AI-developed project. This codebase was built and is actively maintained by Claude. Review all code and tool permissions before use.

Packages

Each package is a standalone MCP server. Install whichever one fits your needs — you don't need to install more than one.

Prerequisites

Install gogcli

gogcli is the CLI that these MCP servers wrap. Install it for your platform:

macOS (Homebrew):

brew install steipete/tap/gogcli

macOS / Linux (binary):

curl -fsSL https://github.com/steipete/gogcli/releases/latest/download/gog-$(uname -s | tr '[:upper:]' '[:lower:]')-$(uname -m | sed 's/x86_64/amd64/;s/aarch64/arm64/') -o /usr/local/bin/gog
chmod +x /usr/local/bin/gog

Windows (Scoop):

scoop bucket add steipete https://github.com/steipete/scoop-bucket
scoop install gogcli

Windows (manual):

Download gog-windows-amd64.exe from the latest release, rename to gog.exe, and add to your PATH.

Authenticate

gog auth add your@gmail.com

This opens a browser for Google OAuth. For specific services only:

gog auth add your@gmail.com --services sheets,docs,drive

Install Node.js

Node.js 18 or later is required. Install via nodejs.org or:

brew install node        # macOS

Quick Start

# Install the package you want
npm install -g gogcli-mcp          # base
npm install -g gogcli-mcp-sheets   # extended sheets
npm install -g gogcli-mcp-docs     # extended docs

Claude Desktop

Add to ~/Library/Application Support/Claude/claude_desktop_config.json:

{
  "mcpServers": {
    "gogcli": {
      "command": "gogcli-mcp",
      "env": {
        "GOG_ACCOUNT": "you@gmail.com"
      }
    }
  }
}

Replace gogcli-mcp with gogcli-mcp-sheets or gogcli-mcp-docs for extended packages.

Claude Code

claude mcp add gogcli -- gogcli-mcp

What you can do

Ask Claude things like:

• "Read the data in Sheet1!A1:D20 of my budget spreadsheet"
• "Append this week's expenses to my tracking sheet"
• "Search my Gmail for invoices from last month"
• "Create a calendar event for tomorrow at 3pm"
• "List comments on my project doc"
• "Export my doc as a PDF"

Multiple Accounts

All tools accept an optional account parameter:

Read Sheet1!A1:D10 from spreadsheet abc123 using my work account work@company.com

Development

npm install        # install all workspace dependencies
npm run build      # build all packages
npm test           # test all packages (267 tests, 100% coverage)
npm run typecheck  # typecheck all packages

Security

• No credentials are stored or passed by these servers — authentication is handled by gogcli's keyring
• All gogcli invocations use --no-input to prevent interactive prompts
• All arguments are passed as arrays to child_process.spawn — no shell injection risk
• GOG_ACCESS_TOKEN is stripped from the child process environment to prevent stale token auth

License

MIT