Gives Claude direct access to macOS Calendar.app through AppleScript. You get 25 tools covering the full lifecycle: list and search events across all your synced calendars (iCloud, Google, Exchange), create and update events with location and description, manage attendees, set display/sound/mail alarms, and switch Calendar.app views programmatically. Works with whatever accounts you've already configured in Calendar.app, no API keys or OAuth needed. Part of a larger macos-mcp suite that also covers Mail, Contacts, Reminders, Numbers, and FaceTime. Useful when you want Claude to read your schedule, block time, or coordinate meeting invites without leaving the terminal.
claude mcp add --transport stdio io.github.aernouddekker-calendarmcp uvx calendarmcp