che-ical-mcp

che-ical-mcp is an MCP server. Its repository has 41 GitHub stars and is licensed under MIT; we last read it on 2026-10-27.

This repository provides a macOS Calendar & Reminders MCP server, offering CRUD operations for events and reminders, including recurring and batch operations, timezone support, and conflict detection. It supports native Swift EventKit integration for Claude Desktop & Code, and includes command-line interface and SwiftUI setup. The server can connect to iCloud, Google, and Exchange calendars. Requires a developer ID for macOS.

Read from che-ical-mcp’s own README, close to verbatim -- not written by us, and not guessed.

claude mcp add --scope user --transport stdio che-ical-mcp -- ~/bin/CheICalMCP

Unverified means a mention in the server’s own description, not a citation. A wrong claim here costs nothing to correct and nothing to trust yet.

26 tools documented in its README. An AI client calls these by name.

list_calendars

List all calendars and reminder lists (includes source_type)

create_calendar

Create a new calendar

delete_calendar

Delete a calendar

update_calendar

Rename a calendar or change its color (v0.9.0)

list_events

List events with filter/sort/limit (v1.0.0)

create_event

Create an event (with reminders, location, URL, per-event timezone, recurrence with excluded dates)

update_event

Update an event (including timezone, recurrence, span for recurring)

delete_event

Delete an event (with occurrence support for recurring)

list_reminders

List reminders with filter/sort/limit, tags extraction (v1.0.0)

create_reminder

Create a reminder with due date, tags (v1.3.0); a bare `YYYY-MM-DD` due date makes it date-only (#267), and the response then carries `date_sync` with `aligned` judged on the saved reminder (#301)

update_reminder

Update a reminder (including tags, `clear_due_date`) (v1.3.0)

complete_reminder

Mark as completed/incomplete

delete_reminder

Delete a reminder

search_events

Search events by keyword(s) with AND/OR matching

list_events_quick

Quick shortcuts: `today`, `tomorrow`, `this_week`, `next_7_days`, etc.

create_events_batch

Create multiple events at once (with per-event timezone)

check_conflicts

Check for overlapping events in a time range

copy_event

Copy an event to another calendar; `delete_original` moves it like `move_events_batch` (recurring events refused)

move_events_batch

Move events to another calendar in place, keeping recurrence and attendees; `span` / `occurrence_dates` for recurring events (#226)

delete_events_batch

Delete events by IDs or date range, with dry-run preview (v1.0.0)

find_duplicate_events

Find duplicate events across calendars (v0.5.0)

create_reminders_batch

Create multiple reminders at once (v0.9.0)

delete_reminders_batch

Delete multiple reminders at once (v0.9.0); one `undo` recreates them (#243)

undo

Undo the most recent calendar/reminder operation

redo

Redo the last undone operation. Only completions are written again; for a create, delete, update or move, redo writes nothing, answers `success: false` with the tool to use, and drops that entry from

undo_history

List undoable operations with timestamps

Read from the README; names are kept only if the README contains them.

What does che-ical-mcp do?

This repository provides a macOS Calendar & Reminders MCP server, offering CRUD operations for events and reminders, including recurring and batch operations, timezone support, and conflict detection. It supports native Swift EventKit integration for Claude Desktop & Code, and includes command-line interface and SwiftUI setup. The server can connect to iCloud, Google, and Exchange calendars. Requires a developer ID for macOS.

How do I install che-ical-mcp?

Its own README gives this command: claude mcp add --scope user --transport stdio che-ical-mcp -- ~/bin/CheICalMCP. Run it where your MCP client can launch the server, and check the README for any settings it asks for.

Which AI clients can use che-ical-mcp?

Its own description mentions Claude Desktop. That is a mention in its description, not a test we ran.

Is che-ical-mcp official and is it maintained?

We found nothing naming it as a vendor’s official server. Its repository has 41 GitHub stars and its state in our directory is listed. Its last commit we recorded was on 2026-10-27.

What licence does che-ical-mcp use?

The repository declares the MIT licence.

• Introduction to Model Context Protocol (Claude Academy)
• The Hugging Face MCP course
• Build an AI agent: a path with skills and MCP servers to practise on