Summary
Connects Claude to Google Contacts through the People API, letting you list, search, create, update, and delete contacts programmatically. Works as an OAuth proxy so the server itself stays stateless while you authenticate directly with Google. Useful when you need Claude to look up email addresses or phone numbers from your network, add business cards after events, or update contact details on the fly. Supports both personal contacts and organization directory searches. Setup requires creating OAuth credentials in Google Cloud Console, then running the server locally with your client ID and secret. Available over HTTP transport with straightforward REST endpoint proxying to Google's services.
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google-contacts-mcp
MCP server for Google Contacts - list, search, and manage contacts.
Use Cases
Email lookup: "See the latest JIRA ticket that's come in. Can we email Sarah from the security team to get their input?" → finds Sarah's email and drafts the message.
Business card capture: After a networking event, snap photos of business cards → your assistant extracts the details and adds them as contacts with a note about where you met.
Find connections: "Who do I know at Google?" or "I'm visiting London next week - who should I catch up with?" → search your personal network.
Call reminder: "Remind me to call Mike at 3pm" → creates a calendar event with Mike's phone number attached so you can dial straight from the reminder.
Contact updates: You receive an out-of-office saying someone left their company with a new personal email → your assistant updates their contact automatically.
(These are just examples - any workflow that needs contact lookup or management can use this.)
Setup
1. Create Google OAuth credentials
- Go to Google Cloud Console
- Create a new project (or use existing)
- Enable the People API
- Go to APIs & Services → OAuth consent screen, set up consent screen
- Go to APIs & Services → Credentials → Create Credentials → OAuth client ID
- Choose Web application
- Add
http://localhost:3000/callbackto Authorized redirect URIs - Note your Client ID and Client Secret
2. Run the server
GOOGLE_CLIENT_ID='your-client-id' \
GOOGLE_CLIENT_SECRET='your-client-secret' \
MCP_TRANSPORT=http \
npm start
The server runs on http://localhost:3000 by default. Change with PORT=3001.
3. Add to your MCP client
claude mcp add --transport http google-contacts-mcp http://localhost:3000/mcp
Architecture
This server acts as an OAuth proxy to Google:
graph LR
A[MCP client] <--> B[google-contacts-mcp] <--> C[Google OAuth/API]
- Server advertises itself as an OAuth authorization server via
/.well-known/oauth-authorization-server /registerreturns the Google OAuth client credentials/authorizeredirects to Google, encoding the client's callback URL in state/callbackreceives the code from Google and forwards to the client's callback/tokenproxies token requests to Google, injecting client credentials/mcphandles MCP requests, using the bearer token to call People API
The server holds no tokens or state - it just proxies OAuth to Google.
Tools
| Tool | Description |
|---|---|
contacts_list | List contacts with names, emails, phones, and organizations |
contacts_search | Search contacts by name, email, or phone |
directory_search | Search organization directory for coworkers |
contact_get | Get detailed info for a single contact |
contact_create | Create a new contact |
contact_update | Update an existing contact |
contact_delete | Permanently delete a contact |
Contributing
Pull requests are welcomed on GitHub! To get started:
- Install Git and Node.js
- Clone the repository
- Install dependencies with
npm install - Run
npm run testto run tests - Build with
npm run build
Releases
Versions follow the semantic versioning spec.
To release:
- Use
npm version <major | minor | patch>to bump the version - Run
git push --follow-tagsto push with tags - Wait for GitHub Actions to publish to the NPM registry.
Featured
Keep your Mac awake while Claude Code and 40+ AI agents run. Sleeps when they're idle.
One time payment $9 →Integrate web data into your AI product. One API to scrape website & brand data.
Get API Key Now →Agent, run crypto. Access onchain data & trade routes via 1inch.
Install now →On Capafy, your Skill runs online 24/7 as an agent product, and you get paid every time someone uses it.
Start earning →Configuration
GOOGLE_ACCESS_TOKEN*secretGoogle OAuth access token.
MCP_TRANSPORT*Transport type.
GOOGLE_CLIENT_ID*Google OAuth client ID.
GOOGLE_CLIENT_SECRET*secretGoogle OAuth client secret.
Categories
Registryactive
Packagegoogle-contacts-mcp
TransportSTDIO, HTTP
AuthRequired
UpdatedMay 25, 2026
