Google Contacts MCP server

Google Contacts MCP

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A1 Google Contacts MCP lets an AI app manage your Google address book in plain language. Find a contact, create or update one, organize contacts with labels, run batch imports and clean-ups, and turn auto-saved "Other contacts" into real ones.

It uses the Google People API — the API behind Google Contacts — with your Google account. It guards every update against concurrent edits, keeps reads compact with explicit field masks and makes the limits of the People API explicit instead of implying that every contacts task is possible.

• 25 tools. List, search and read contacts, create, update and delete them one at a time or in batches, manage contact groups and membership, and reach "Other contacts".
• Connects from the conversation. Say "connect Google Contacts": the server walks you through the OAuth client, catches Google's redirect on 127.0.0.1 with PKCE and keeps the tokens itself — no config files, no restart.
• Updates don't clobber. Every update is etag-guarded: if a contact changed elsewhere since it was read, the write fails instead of silently overwriting the concurrent edit.
• Deletes are real. The People API has no trash; deleting a contact or group is permanent, and the server marks those tools destructive so your AI app can ask first.
• Minimal Google scopes. It uses contacts for read/write — contacts.readonly is enough for a read-only setup — plus contacts.other.readonly only for "Other contacts", without broad account access.

Start with a read-only question:

Find everyone from Acme in my contacts and show their emails and phone numbers.

Connect the server · Explore use cases · Open technical documentation

See it work in a minute

You: Show my contact card for Jane Doe — email, phone and company.

Assistant: Finds the contact and shows the requested fields. Nothing changes.

You: Change her phone number to +1 415 555 0100 and add her to the "Clients" label.

Assistant: Shows the contact and the proposed change, then asks for confirmation before writing.

You: Confirm.

Assistant: Applies the etag-guarded update and the label. If the contact changed elsewhere in the meantime, the write fails instead of overwriting it.

Contents

• Quick start
• What you can ask it to do
• How a contact changes
• What can change
• Getting access
• Configuration
• Data, limits and background work
• Technical documentation
• Support

Quick start

You need Node.js 20+ and a Google account. Credentials are not required at install time — the server connects from the conversation.

1. Add the server to your AI app.
2. Say "connect Google Contacts": the assistant walks you through creating the OAuth client and approving access without editing config files.
3. Ask the read-only question above.

Codex

Shortened. The full README is on GitHub.