google-calendar-mcp

A production-ready MCP server that lets AI assistants interact with your personal Google Calendar using the Google Calendar API and OAuth 2.0.

→ Naim-Howlader/google-calendar-mcp-server · listed on glama

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// key findings

✅

No credential exfiltration, no sensitive file access, no obfuscation

Static analysis found nothing flowing your secrets to unexpected places.

✅

Open source with a license and README

Anyone can audit the code, the license is declared, and the publisher documents what it does.

🔐

You'll be asked for 2 credentials: GOOGLE_CLIENT_SECRET, GOOGLE_REFRESH_TOKEN

These are read from process.env at runtime. Make sure you trust where they’ll be sent.

// required environment variables

This server reads these from process.env. You'll be asked to provide them before it can run.

configDEFAULT_CALENDAR_ID— No Default calendar when a tool omits calendarId (default: primary)

configGOOGLE_CLIENT_ID— Yes OAuth 2.0 client ID from Google Cloud Console

🔐 secretGOOGLE_CLIENT_SECRET— Yes OAuth 2.0 client secret

🔐 secretGOOGLE_REFRESH_TOKEN— Yes Long-lived refresh token from the OAuth consent flow

// full audit trail

The full breakdown of what we checked, the deductions that landed, the network hosts, the dependency advisories, and concrete fix guidance is available to verified publishers.

// improvement guidance — verified publishers only

We have 5 concrete improvements we can share with the publisher of this MCP. Each comes with specific guidance to raise the trust score.

// embed badge in your README

[![M8ven Score](https://m8ven.ai/badge/mcp/naim-howlader-google-calendar-mcp-server-rh0zbx)](https://m8ven.ai/mcp/naim-howlader-google-calendar-mcp-server-rh0zbx)

commit: 6407f49973e7c2a97dc3e2a175e1a623a8f5a12e

code hash: d59be27b7614c550c7ec87eaeb591004b855df5ab40ae9cde4eaaa4f601db636

verified: 7/15/2026, 8:47:58 AM

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