Name: Google Services MCP
Author: matheusbuniotto

LABSCO SUMMARY

The service-account path is what makes it usable unattended.

Most Workspace servers assume a person is present to complete a browser sign-in. This one takes a service-account key on the command line instead, which is what a scheduled job or a server-side agent needs. The flip side of one binary covering seven services is scope: the OAuth consent you grant covers everything you enabled, so grant only the APIs you actually intend it to touch.

What it is

A single Go binary that exposes seven Google Workspace services through one MCP server. Rather than running a separate server per service, you install one command and it covers mail, files, calendar, spreadsheets, documents, contacts and tasks.

What you get

Gmail — search and list threads, read full conversations, create drafts, send, and move to trash
Drive — search, read text content, create files and folders, update content, move, share and trash
Calendar — list upcoming events, create meetings with attendees, delete events
Sheets — create spreadsheets, read ranges, append rows, update specific cells
Docs — create new documents and read full document text
People — list contacts and create new connections
Tasks — list task lists and tasks, create, update and delete, with optional status or due-date filtering

Requirements

Go 1.24 or later, then go install github.com/matheusbuniotto/go-google-mcp/cmd/go-google-mcp@latest. Two authentication paths. For personal use, create a Desktop App OAuth client in Google Cloud, save it as client_secrets.json, and run go-google-mcp auth login --secrets <YOUR_PATH_TO_CLIENT_SECRETS> once — the token is stored in ~/.go-google-mcp/. For server or automated use, download a service-account key and pass -creds <YOUR_CREDS>. Enable the APIs you intend to use (Drive, Gmail and so on) in the same Google Cloud project. Clients launch it as go-google-mcp with no arguments.

Setup effort

Follow the published steps — go install github.com/matheusbuniotto/go-google-mcp/cmd/go-google-mcp@latest

See installation options

USE CASES

01

Finding a thread and drafting the reply

Search Gmail, read the whole conversation, and leave a draft for you to check before it goes.

02

Putting a meeting in the calendar from a chat

Create the event with attendees directly instead of switching to Calendar.

03

Logging something to a spreadsheet

Append a row or update a specific cell in an existing sheet.

04

Running Workspace tasks from a server with no browser

Authenticate with a service-account key rather than an interactive login.

BEFORE YOU INSTALL

What to know first

Requires

Go 1.24 or later
go-google-mcp on PATH

INSTALLATION

Connect your client

Server setup

TERMINAL

go install github.com/matheusbuniotto/go-google-mcp/cmd/go-google-mcp@latest

In the Google Cloud Console (https://console.cloud.google.com/), enable the APIs you need (Drive, Gmail and so on) and create a Desktop App OAuth client.

Download its client secrets file and save it as client_secrets.json.

Sign in once; the token is saved to ~/.go-google-mcp/:

TERMINAL

go-google-mcp auth login --secrets <YOUR_PATH_TO_CLIENT_SECRETS>

For server or automated use, skip the sign-in and run it with a service-account key instead: go-google-mcp -creds <YOUR_CREDS>

MCP Clients

Claude Desktop, Cursor

JSON

{
  "mcpServers": {
    "google-workspace": {
      "command": "go-google-mcp",
      "args": []
    }
  }
}

Gemini CLI

GEMINI CLI · TERMINAL

gemini mcp add google-workspace $(which go-google-mcp)

Google Services MCP