Google Calendar MCP: Documentation
Updated:
Connection
Repo: github.com/nspady/google-calendar-mcp (MIT, 1.2k★). Install: npx @nspady/google-calendar-mcp (stdio, default), or the Docker image with HTTP mode. Before first use, create a Google Cloud project, enable the Calendar API, and create "Desktop app" OAuth credentials — tokens are saved to your system config after the first login.
Tools
12 tools: list-calendars, list-events, search-events, get-event, create-event, update-event, delete-event, respond-to-event, get-freebusy, get-current-time, list-colors, manage-accounts. Supports multi-account use (several Google accounts at once), conflict detection across calendars, recurring-event edits and RSVP replies.
Agent flow
"Check if I'm free tomorrow 2-4pm across all my connected calendars", "create a Project review meeting from this invite screenshot", "move every Friday meeting to Monday and notify attendees via RSVP".
Note
A community project (MIT), not an official Google product, but with 1.2k stars it's the most popular Google Calendar server in the MCP ecosystem. An official Google preview MCP for Calendar wasn't publicly confirmed at the time this card was written (unlike Gmail, Drive and Sheets).
Pricing
The MCP server is free and open source; optional GitHub sponsorship for the author is available. Calendar API usage falls within Google's free quotas for personal and most team use cases.