che-ical-mcp

macOS Calendar & Reminders MCP server (29 tools) — native Swift EventKit for Claude Desktop & Code. Events + reminders CRUD, recurring, batch ops, conflict & duplicate detection, per-event timezone, undo/redo, #tags, --cli mode, SwiftUI --setup TCC flow, --self-update. Developer-ID signed + notarized for macOS 26. iCloud/Google/Exchange.

GitHub

Official source

Start locally with the CLI guide