Google Workspace Authentication

Authenticate the Gmail and Google Calendar MCP servers via OAuth 2.0.

Prerequisites

1. A Google Cloud Platform project with a Desktop-type OAuth 2.0 Client ID
2. Download the OAuth JSON and place it in BOTH locations:
   • ~/.gmail-mcp/gcp-oauth.keys.json
   • ~/.calendar-mcp/gcp-oauth.keys.json
3. Enable these APIs in the GCP project:
   • Gmail API
   • Google Calendar API
   • People API (for contact lookup)

Procedure