Calendar

Verified Integration

Author: @running•Category: ServerApplication

GitHub Repository

JSON-RPC 2.0

Protocol Standard

Sub-second

Execution Latency

Active

Operational Status

Client Configuration

— Connect Calendar to Claude Desktop or Cursor in seconds

{
  "mcpServers": {
    "calendar-4": {
      "command": "npx",
      "args": [
        "-y",
        "@modelcontextprotocol/server-calendar-4"
      ],
      "env": {}
    }
  }
}

Paste into ~/Library/Application Support/Claude/claude_desktop_config.json (macOS) or %APPDATA%\Claude\claude_desktop_config.json (Windows).

Architecture & Capabilities

System Overview

Provides a Model Context Protocol (MCP) server for integrating macOS Calendar events with large language models.

Indexed Date

7/22/2026

License

Open Source

Protocol Layer

stdio / SSE RPC

Frequently Asked Questions

Architecture and operational details for Calendar

Calendar MCP requires macOS (as it accesses the native macOS Calendar database) and Deno 2.x or later. It also needs read access to your `~/Library/Calendars/Calendar.sqlitedb` file.

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