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.

• 19 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".
• 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+, a Google account and OAuth credentials from a Google Cloud project with the People API enabled.

1. Prepare Google OAuth access.
2. Add the server to your AI app.
3. Ask the read-only question above.

codex mcp add google-contacts \
  --env GOOGLE_CONTACTS_CLIENT_ID=your_client_id \
  --env GOOGLE_CONTACTS_CLIENT_SECRET=your_client_secret \
  --env GOOGLE_CONTACTS_REFRESH_TOKEN=your_refresh_token \
  -- npx -y mcp-google-contacts@latest

codex mcp list

claude mcp add \
  --env GOOGLE_CONTACTS_CLIENT_ID=your_client_id \
  --env GOOGLE_CONTACTS_CLIENT_SECRET=your_client_secret \
  --env GOOGLE_CONTACTS_REFRESH_TOKEN=your_refresh_token \
  --transport stdio --scope user google-contacts \
  -- npx -y mcp-google-contacts@latest

claude mcp list

{
  "mcpServers": {
    "google-contacts": {
      "command": "npx",
      "args": ["-y", "mcp-google-contacts@latest"],
      "env": {
        "GOOGLE_CONTACTS_CLIENT_ID": "your_client_id",
        "GOOGLE_CONTACTS_CLIENT_SECRET": "your_client_secret",
        "GOOGLE_CONTACTS_REFRESH_TOKEN": "your_refresh_token"
      }
    }
  }
}

{
  "mcpServers": {
    "google-contacts": {
      "type": "stdio",
      "command": "npx",
      "args": ["-y", "mcp-google-contacts@latest"],
      "env": {
        "GOOGLE_CONTACTS_CLIENT_ID": "your_client_id",
        "GOOGLE_CONTACTS_CLIENT_SECRET": "your_client_secret",
        "GOOGLE_CONTACTS_REFRESH_TOKEN": "your_refresh_token"
      }
    }
  }
}

{
  "servers": {
    "google-contacts": {
      "type": "stdio",
      "command": "npx",
      "args": ["-y", "mcp-google-contacts@latest"],
      "env": {
        "GOOGLE_CONTACTS_CLIENT_ID": "${input:contacts_client_id}",
        "GOOGLE_CONTACTS_CLIENT_SECRET": "${input:contacts_client_secret}",
        "GOOGLE_CONTACTS_REFRESH_TOKEN": "${input:contacts_refresh_token}"
      }
    }
  },
  "inputs": [
    { "type": "promptString", "id": "contacts_client_id", "description": "Google OAuth client ID" },
    { "type": "promptString", "id": "contacts_client_secret", "description": "Google OAuth client secret", "password": true },
    { "type": "promptString", "id": "contacts_refresh_token", "description": "Google OAuth refresh token", "password": true }
  ]
}

What you can ask it to do

Find and inspect contacts

• Find everyone from Acme and show their emails and phone numbers.
• Show who is in the "Clients" label.
• List the contacts that changed since the last sync.

Keep the address book up to date

• Create a contact for Jane Doe with her email, phone and company.
• Update a contact's phone number or job title.
• Import fifty people in one batch, or delete outdated contacts in one call.

Organize with labels

• Create a "Clients" label and add these contacts to it.
• Rename a label, or move a contact from one label to another.
• Delete a label without deleting its contacts — or with them, but only when asked explicitly.

Work with "Other contacts"

• Show the addresses Google saved automatically that are not in my contacts.
• Copy one of them into My Contacts as a real contact.

How a contact changes

1. Every contact, group and Other contact has a full resource name (people/c..., contactGroups/..., otherContacts/...); tools address records by it, exactly as the API returns it.
2. Reads return only the fields named in the field mask (default: names, emails, phones, organizations, group memberships). An absent field may simply be outside the mask, not empty.
3. An update replaces each provided field group as a whole and is guarded by an etag: if the contact changed elsewhere since it was read, the write fails instead of overwriting the concurrent edit.
4. Deletes are permanent. The People API has no trash and no undo.

Search covers a cache that can lag recent writes by a few seconds and returns at most 30 results. "Other contacts" — addresses Google saves automatically — can only be read or copied into My Contacts, not edited in place. Contact photos have no dedicated tool; raw_request reaches those endpoints.

What can change