google-services-mcp

MCP (Model Context Protocol) server that gives AI agents direct access to your Google services — Gmail, Calendar, Google Meet, Drive, Contacts, Tasks, Sheets, Docs, Slides, YouTube, and Forms — with multi-account OAuth support.

Add one account, wire the server into any MCP-compatible AI client, and your agent can read and send email, manage your calendar, find files in Drive, create documents and spreadsheets, and more — using your real Google data.

Features

• Gmail — send, list, read, modify, and reply to messages
• Calendar — list calendars, create/read/update/delete events, create Google Meet links
• Drive — list, read, upload, update, delete, and share files
• Contacts — list, search, and create contacts
• Tasks — list task lists, create/complete/delete tasks
• Sheets — create spreadsheets, read/write/append cell ranges, batch update
• Docs — create documents, read text, insert/replace text, batch update
• Slides — create presentations, add/delete slides, find-and-replace text
• YouTube — search videos, manage uploads/playlists/subscriptions
• Forms — create forms, add questions, read responses
• Multi-account — connect several Google accounts, set a default, or pass an account argument to any tool
• OAuth 2.0 — one-time browser authorization; tokens are stored locally and refreshed automatically

60 tools across 11 services, all prefixed google_. Full reference: docs/TOOLS.md.

Requirements

• Node.js 24+ (CI runs Node 24; local dev on 26)
• A Google Cloud project with the required APIs enabled and an OAuth 2.0 Desktop app client (one-time setup, ~10 minutes — see below)

Install

npm install -g google-services-mcp

Release channels

• latest — stable releases, published automatically on every merge to main
• beta — staging builds, published manually from main (e.g. 0.1.1-beta.0)

Try the staging channel without touching your stable install:

npm install -g google-services-mcp@beta
npx -y google-services-mcp@beta --version

All publishes are signed with npm provenance (trusted publishing via GitHub Actions OIDC) — no npm token is stored in CI.

Quick start

1. Add a Google account — opens your browser for one-time authorization:

   google-services-mcp add personal
   

2. Register the server with your MCP client (see MCP client configuration for Claude Desktop, opencode, and generic configs).

3. Start using it — ask your agent to "check my email" or "add an event to my calendar". Or add more accounts any time: google-services-mcp add work.

MCP client configuration

The server speaks MCP over stdio. Point your client at the google-services-mcp executable and pass your OAuth credentials via environment variables.

opencode

In opencode.json (or your global config):

{
  "mcp": {
    "google-services-mcp": {
      "type": "local",
      "command": ["google-services-mcp"],
      "enabled": true,
      "environment": {
        "GOOGLE_MCP_CLIENT_ID": "your-client-id",
        "GOOGLE_MCP_CLIENT_SECRET": "your-client-secret"
      }
    }
  }
}

Claude Desktop / Cursor / other MCP clients

In the client's MCP settings file (e.g. claude_desktop_config.json):

{
  "mcpServers": {
    "google-services-mcp": {
      "command": "google-services-mcp",
      "env": {
        "GOOGLE_MCP_CLIENT_ID": "your-client-id",
        "GOOGLE_MCP_CLIENT_SECRET": "your-client-secret"
      }
    }
  }
}

Google Cloud setup (one-time)

Each installation uses its own OAuth client — credentials are per-user and never shared.

1. Create a project

Open the Google Cloud Console, choose Select a project → New Project, and name it (e.g. google-services-mcp).

2. Configure the OAuth consent screen

APIs & Services → OAuth consent screen:

1. User type: External (required for regular Google accounts).
2. App name: anything you like (e.g. Google Service MCP); support email = yours.
3. Under Audience → Test users, click Add users and enter every Google account that will use this server. While the app is in Testing mode, accounts not on this list get access blocked on the consent screen.

3. Enable the required APIs

APIs & Services → Library, search and Enable each:

Gmail API · Google Calendar API · Google Drive API · People API · Google Tasks API · Google Sheets API · Google Docs API · Google Slides API · YouTube Data API v3 · Google Forms API

Automated: with the gcloud CLI installed and authenticated (gcloud auth login), enable all 10 APIs at once — idempotent, safe to re-run:

bash scripts/enable-apis.sh --project your-project-id

4. Create OAuth client credentials

APIs & Services → Credentials → Create Credentials → OAuth client ID:

1. Application type: Desktop app.
2. Authorized redirect URIs: http://localhost:8787.
3. Copy the Client ID and Client Secret.

5. Provide the credentials

Set these environment variables (or put them in your MCP client config as above):

GOOGLE_MCP_CLIENT_ID=<your-oauth-client-id>
GOOGLE_MCP_CLIENT_SECRET=<your-oauth-client-secret>

Optional:

GOOGLE_MCP_DIR=~/.google-services-mcp   # where config and tokens live (default ~/.google-services-mcp)
GOOGLE_MCP_REDIRECT_PORT=8787          # local loopback port for OAuth (default 8787)
# Full redirect URI override. Takes precedence over REDIRECT_PORT and must
# exactly match a URI registered for this OAuth client in the Cloud Console.
# GOOGLE_MCP_REDIRECT_URI=http://127.0.0.1:8787/oauth2callback

6. Connect your first account

google-services-mcp add personal

A browser opens to the Google consent screen. After you approve, the account is stored in ~/.google-services-mcp/accounts/ and ready to use. Repeat with a different name (e.g. work) to connect more accounts.

CLI reference

google-services-mcp                     # run the MCP server over stdio
google-services-mcp add <name>          # add a Google account (opens browser)
google-services-mcp list                # list connected accounts
google-services-mcp remove <name>       # remove an account
google-services-mcp set-default <name>  # set the default account
google-services-mcp status              # show config and token health
google-services-mcp --help              # show help

For AI agents

• All tools are prefixed google_, e.g. google_gmail_list, google_calendar_list_events, google_drive_list_files.
• The account argument selects which connected account a tool uses; omit it to use the default account.
• Agents can connect new accounts themselves via the account_add tool — it opens the browser consent flow without needing the CLI.
• See docs/TOOLS.md for the full tool reference.

Security

• OAuth tokens are stored in ~/.google-services-mcp/accounts/<account-name>.json with restrictive file permissions. Keep them private — never commit them.
• The server never logs tokens or credentials.
• Scopes requested: Gmail modify, Calendar, Drive, Contacts, Tasks, Sheets, Docs, Slides, YouTube, Forms, plus userinfo.email for account display.
• If a client secret is ever exposed, rotate it in the Google Cloud Console (Credentials → your OAuth client → rotate secret).

Troubleshooting

Symptom	Cause / fix
access blocked on consent	Account not in Test users (setup step 2.3) — add it and retry
redirect_uri_mismatch	Redirect URI must be exactly http://localhost:8787 — no trailing slash — and match what your OAuth client allows
Tokens stop working after ~7 days	App is in Testing mode — re-run add, or Publish app on the consent screen
Google hasn't verified this app	Normal for unverified apps — click Advanced → Continue for personal use

Local development

git clone https://github.com/nabheet/google-services-mcp.git
cd google-services-mcp
npm install
npm run build        # compile to dist/
npm test             # vitest, TDD suites
npm run typecheck    # tsc --noEmit
npm run dev          # run from source with tsx

See AGENTS.md for architecture and conventions.

Releases (maintainers)

All publishing happens from GitHub Actions — no local npm login needed:

1. Stable — every merge to main auto-publishes the next patch version to latest with provenance, then creates a vX.Y.Z tag and GitHub release. No manual steps. The next version is derived from the last published latest on npm, so repeated merges never collide; an intentional minor/major bump in package.json is honored.
2. Staging — manual beta builds from main: Actions → Publish to npm → Run workflow. Publishes a beta build (0.1.1-beta.X) under the beta dist-tag with provenance.

Prerelease tags v*-beta* publish to beta with a prerelease GitHub release (patch/minor builds for milestone testing). Publishing uses npm trusted publishing (OIDC): configure it once per package at npmjs.com/package/google-services-mcp/access with the GitHub repository nabheet/google-services-mcp and workflow name publish.yml. npm allows one trusted publisher per package and validates the calling workflow's filename — all channels run from the same publish.yml file. No NPM_TOKEN secret is required.

License

MIT