Deciduus Calendar

Name: Deciduus Calendar MCP Server
Author: deciduus

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Google Calendar for LLM agents: find, create, update, move, delete events; free/busy; scheduling.

Getting Started

npx @getmcp/cli add io.github.deciduus/calendar-mcp

Requires Python 3.10+. Community-contributed server. Review source before installing.

Claude Desktopguide →Vscodeguide →Cursorguide →Windsurfguide →

Required Environment Variables

GOOGLE_CLIENT_ID
OAuth 2.0 client ID for a Google Cloud project with the Google Calendar API enabled.
GOOGLE_CLIENT_SECRET
OAuth 2.0 client secret matching GOOGLE_CLIENT_ID.

Configuration

Config file: ~/Library/Application Support/Claude/claude_desktop_config.json

JSON

{
  "mcpServers": {
    "io.github.deciduus/calendar-mcp": {
      "command": "uvx",
      "args": [
        "calendar-mcp-server"
      ],
      "env": {
        "GOOGLE_CLIENT_ID": "",
        "GOOGLE_CLIENT_SECRET": "",
        "TOKEN_FILE_PATH": ".gcp-saved-tokens.json"
      }
    }
  }
}

Claude Desktop MCP documentation