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Reported by sourceThe source says this happened. Top 200 Repos has not reproduced it.

Give Claude your Google Calendar and Gmail through a self-run MCP server

The open-source Google Workspace MCP server exposes Calendar, Gmail and other Workspace tools to Claude Desktop, Claude Code and other MCP clients, using your own OAuth client and optional read-only mode.

The problem

How it works

The README walks through creating an OAuth client in your own Google Cloud project, enabling the APIs you need, and launching the server with uvx, either loading only some services (for example Gmail, Drive and Calendar) or a smaller core tool tier. It then connects to an MCP client; the project links setup guides for Claude Desktop and web connectors and ships a CLI for Claude Code and Codex. Calendar tools cover events, free and busy time, Out of Office and Focus Time; Gmail tools cover search, drafts, labels and filters.

Results and limitations

The maintainer reports more than 120 tools across twelve Workspace services, multi-user OAuth 2.1, a read-only mode and per-service permissions; no usage outcomes are published.

Before you try it

You control the scopes because the OAuth client is yours; start with read-only mode or the core tier so the assistant can read your calendar before it can change it. The server only calls Google’s APIs and has no telemetry unless you configure tracing. Email content can carry prompt injection, so confirm any send or delete. MIT licensed. Results depend on your setup and were not independently reproduced by Top 200 Repos.

Tools and repositories

No ranked repository is involved. This use case still stands on its own source.

Tools
Google Workspace MCP · Claude Desktop · Google Cloud OAuth client · uv
Prerequisites
A Google account, a Google Cloud project with the needed APIs enabled and an MCP client such as Claude Desktop or Claude Code.

Try it yourself: Plan my week from the calendar

Fill the fields to adapt the prompt. Empty fields stay as visible [placeholders].

Preview
Using the Google Calendar tools, read my events from [Start date] to [End date] and list them by day. Point out double bookings, days with no break longer than [Shortest acceptable break], and meetings without an agenda in the description. Propose up to three changes, such as a Focus Time block or a meeting to move, and explain each one. Do not create, move, decline or delete anything, and do not email anyone, until I approve each change by number.

Run the server in read-only mode for the first sessions; switch on write tools only for the services you need.

Sources

  1. taylorwilsdon/google_workspace_mcp README (opens in a new tab)

    Project documentation · github.com · Undated · Source checked 11 Nov 2026, 10:08 UTC

    What this source supports
    • MCP server for Gmail, Calendar, Drive, Docs, Sheets and more; 120+ tools
    • Your own OAuth client and Google Cloud project; launch with uvx
    • Tool tiers, per-service selection, read-only mode and per-service permissions
    • Setup guides for Claude Desktop and web connectors; CLI for Claude Code and Codex
    • Calls only Google APIs; no telemetry unless configured; MIT licence
Report a problem

Reported by source

Let a self-hosted assistant file email and pre-draft replies with Inbox Zero

Inbox Zero works in the background on Gmail or Outlook: you write rules in plain English, and it files mail, drafts replies in your style, unsubscribes in bulk and briefs you before meetings.

github.com
Planned, not done

Let Microsoft Scout prepare meetings and sort out calendar conflicts in Microsoft 365

Microsoft announced Scout at Build 2026: an always-on personal work agent for Frontier customers, built on the open-source OpenClaw and on Work IQ, that handles meeting prep, scheduling conflicts and routine tasks.

blogs.microsoft.com · 2 Jun 2026openclaw/openclaw
Reported by source

Answer technical questions by letting async agents run experiments

Simon Willison sends research questions to cloud coding agents such as Claude Code for web and Codex Cloud, which write and run experiments in a dedicated repo and open a PR.

simonwillison.net · 6 Nov 2025anthropics/claude-code, openai/codex
Planned, not done

Build a formula-driven Excel model with the Claude xlsx skill

Install Anthropic's xlsx skill in Claude Code so the agent writes live formulas, recalculates the workbook with LibreOffice and checks it for formula errors.

github.comanthropics/skills, anthropics/claude-code
Reported by source

Build an on-call investigation agent from your own alert history

Goutham Veeramachaneni connected Claude Code to Grafana's gcx CLI, his code and runbooks, then trained its skill on two weeks of past pages for his services.

gouthamve.dev · 21 Apr 2026anthropics/claude-code