mcp-eventkit

MCP server for Apple Reminders using the native EventKit framework via PyObjC. No tokens, no sync services — reads and writes directly to the Reminders database on macOS.

Requirements

• macOS (Apple Silicon or Intel)
• Python 3.13+
• uv
• Reminders access granted in System Settings → Privacy & Security → Reminders

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Running

uv run --with mcp --with pyobjc-framework-EventKit python server.py

On first run, macOS will prompt for Reminders access. If denied, grant it in System Settings → Privacy & Security → Reminders, then restart.

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Available Tools

Tool	Description	Destructive
reminders_list_lists	List all reminder lists	No
reminders_list	List reminders, filtered by list and/or completion status	No
reminders_create	Create a new reminder	No
reminders_update	Update title, notes, due date, priority, or completion	No
reminders_delete	Permanently delete a reminder	Yes

All read tools support response_format: "markdown" (default) or "json".

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Claude Desktop / Claude Code Config

Add to your MCP server config:

{
  "mcpServers": {
    "reminders": {
      "command": "/opt/homebrew/bin/uv",
      "args": [
        "run",
        "--with", "mcp",
        "--with", "pyobjc-framework-EventKit",
        "python",
        "/path/to/server.py"
      ]
    }
  }
}

Replace /path/to/server.py with the absolute path to this file.

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Known Limitations

• No support for subtasks, tags, location reminders, or recurring reminders
• Due dates are stored as NSDateComponents — timezone behavior depends on the system calendar
• macOS only (EventKit is not available on Linux/Windows)

Contributing

Bug fixes and clear improvements are welcome — open a PR. For new features, please open an issue first to discuss before writing code. I'll merge fixes that are unambiguously correct, but make no guarantees on feature additions.

License

MIT