Google Calendar MCP Server

A Model Context Protocol (MCP) server that provides access to Google Calendar data.

Features

• List available Google Calendars
• Find available time slots in a calendar
• Get upcoming events from a calendar

Prerequisites

• Python 3.9+
• Google Cloud project with Calendar API enabled
• OAuth2 credentials

Setup

1. Install dependencies:

   pip install -r requirements.txt
   

2. Set up Google Calendar API credentials:

   python setup_credentials.py
   

   Follow the prompts to authenticate with Google.

3. Run the server:

   python google_calendar_server.py
   

Using with Claude Desktop

Configure Claude Desktop to use this server by editing the configuration file:

{
  "mcpServers": {
    "google-calendar": {
      "command": "python",
      "args": ["/full/path/to/google_calendar_server.py"],
      "env": {
        "GOOGLE_TOKEN_FILE": "/path/to/token/file.json"
      }
    }
  }
}

Available Tools

list_calendars

Lists all available Google Calendars.

get_available_slots

Finds available time slots in a calendar.

Parameters:

• calendar_id: The ID of the calendar to check
• days_ahead: Number of days ahead to check (default: 7)
• slot_duration_minutes: Duration of each slot in minutes (default: 30)
• start_hour: Start hour of the day in 24-hour format (default: 9)
• end_hour: End hour of the day in 24-hour format (default: 17)

get_upcoming_events

Gets upcoming events from a calendar.

Parameters:

• calendar_id: The ID of the calendar to check
• days_ahead: Number of days ahead to check (default: 7)
• max_events: Maximum number of events to return (default: 10)