Google Workspace MCP Server
Full natural language control over Google Calendar, Drive, Gmail, Docs, Sheets, Slides, Forms, Tasks, Contacts, and Chat through all MCP clients, AI assistants and developer tools. Includes a full featured CLI & Code Mode for use with tools like Claude Code and Codex!
The most feature-complete Google Workspace MCP server is in a class of it's own: it can do things that Google's own tooling and the built in integrations with Claude and ChatGPT can't come close to with multi-user support, rich fine-grained editing tools and the most extensive coverage of any Workspace AI integration in existence.
By leveraging native OAuth 2.1, stateless deployment capability and external auth server & gateway passthrough auth support, it's also the only Workspace MCP you can host for your whole organization centrally & securely!
Supports all free Google accounts & Google Workspace plans with expanded app options like Chat & Spaces. Interested in a managed cloud instance? That can be arranged (starting at $5/mo).
See it in action:
What It Does
Workspace MCP connects AI assistants to all twelve major Google Workspace services - 120+ tools behind a single MCP server, with OAuth 2.1 multi-user auth, three progressive tool tiers, read-only mode, a full CLI, and stateless container deployment. It runs locally over stdio for legacy clients and remotely over streamable HTTP with full implementation of the latest MCP spec.
The README covers just enough to get you running, with extensive documentation on the website:
| Where to go | What you'll find |
|---|---|
| Quick Start | Google Cloud setup, credentials, and client connection with screenshots |
| Full Documentation | Every tool, parameter, and auth mode |
| Advanced Deployment | Reverse proxy & nginx config, origin validation, credential store backends (GCS/CMEK), trusted-gateway identity, and the complete environment variable reference |
| Client Setup Guides | Claude Desktop/web Connectors, ChatGPT Developer Mode, and more |
| FAQ & Troubleshooting | Enabling Google APIs, OAuth errors, redirect URIs, Google Chat setup, client quirks |
Security & Compliance
For Security Teams
By default, this server sends no data anywhere except Google's APIs, on behalf of the authenticated user, using your own OAuth client credentials. There is no usage reporting, analytics, license server, or SaaS dependency outside optional OTel support for your own usage.
- Fully open source — every line is auditable in this repo
- Your OAuth client, your GCP project — credentials never leave your environment & you control scopes
- You control the network — deploy behind your reverse proxy, in your VPC, on your own terms
- Stateless mode — zero disk writes for locked-down container environments
- Sensitive path blocking — local file reads default to the managed attachment directory, and
validate_file_path()still blocks.env*files plus common home-directory credential stores such as~/.ssh/and~/.aws/even ifALLOWED_FILE_DIRSis broadened
Full dependency tree in pyproject.toml, pinned in uv.lock.
For Legal & Procurement
This project is MIT licensed — not "open core," not "source available," not "free with a CLA." There is no dual licensing, no commercial tier gating features, and no contributor license agreement.
- Use commercially without restriction — build products, sell services, deploy internally
- Fork, embed, redistribute — MIT requires only attribution
- No CLA — contributions remain under MIT
- No built-in telemetry to disclose — optional tracing is off unless you configure it
- No network effects — the server never contacts any endpoint you didn't configure
- Standard dependency licenses — MIT, Apache 2.0, and BSD throughout the dependency chain; no copyleft, no AGPL