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Apple Calendar

List, create, update, and delete events in Apple Calendar on macOS.

Connector by JonathanRReed · GitHub account verified by the MCP Registry

IndexedMITLocal (stdio)★ 28
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Install

Works with Claude Code, Codex, VS Code, Claude Desktop, Cursor, Windsurf. Read the repository before you give any tool access to your data.

npx agentmarket install connector/jonathanrreed-apple-calendar-mcp

Asks which of your tools to add it to (Claude Code, Codex, Cursor, VS Code, Windsurf, Gemini CLI, Claude Desktop) and shows the change first. See https://agentmart.dev/cli.

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About

List, create, update, and delete events in Apple Calendar on macOS.

Use cases: scheduling

Reviews

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Permissions

What this server can do and what it asks for, from its tool list, install config and code. Checked Oct 25, 2026.

Tools
8 read · 2 write · 1 delete
Secrets
None asked for
Install scripts
None found
Runs as
Python package

Tools by what they do 11

Read from the source code; the running server may list different tools.

Read 8 · Look things up without changing anything.

  • calendar_get_event
  • calendar_get_prompt
  • calendar_health
  • calendar_list_calendars
  • calendar_list_events
  • calendar_list_prompts
  • calendar_permission_guide
  • calendar_recheck_permissions

Write 2 · Create, change, send or run things.

  • calendar_create_event
  • calendar_update_event

Delete 1 · Delete, drop, revoke or wipe things.

  • calendar_delete_event

Secrets and settings it asks for

Other settings (environment variables or headers).

  • APPLE_CALENDAR_MCP_ALLOWED_CALENDARS
  • APPLE_CALENDAR_MCP_SAFETY_MODE
  • APPLE_CALENDAR_MCP_WRITE_ALLOWED_CALENDARS

Network hosts it talks to 3

  • docs.astral.sh · found in code
  • github.com · found in install command, code
  • raw.githubusercontent.com · found in code

Files it touches

  • Your home directory (~)
  • Any path the agent passes to its tools

Tools (11)

Read from the source code; the running server may differ. Descriptions are the server’s own words; hidden characters are shown as [U+…].

  • calendar_create_eventCreate Event

    Create a new event in a specific Apple Calendar calendar. Use the exact calendar_id returned by calendar_list_calendars. With native access, a unique calendar name resolves to its native calendar; duplicate names return AMBIGUOUS_CALENDAR. Optional alarms: list of {minutes_before: N} or {absolute_iso: ISO datetime}. Automation can add initial display alerts only when no inherited alerts need removal; full alarm editing requires native EventKit access.

  • calendar_delete_eventDelete Event

    Delete a calendar event by event_id.

  • calendar_get_eventGet Event

    Fetch full details for a calendar event by event_id.

  • calendar_get_promptCalendar Get Prompt

    Fallback prompt rendering tool for tool-only MCP clients.

  • calendar_healthCalendar Health

    Report the active Apple Calendar server configuration.

  • calendar_list_calendarsList Calendars

    List available Apple Calendar calendars. Select by name and source, then pass the returned calendar_id unchanged. Re-list after Calendar access changes to refresh identifiers.

  • calendar_list_eventsList Events

    List calendar events in a time window, optionally filtered to one calendar. Use calendar_id from calendar_list_calendars. Listing through native EventKit returns native event IDs for full alarm edits.

  • calendar_list_promptsCalendar List Prompts

    Fallback prompt discovery tool for tool-only MCP clients.

  • calendar_permission_guideCalendar Permission Guide

    Explain how to grant Apple Calendar permission on macOS.

  • calendar_recheck_permissionsCalendar Recheck Permissions

    Recheck Calendar access after the user changes macOS permissions, and notify the client that Calendar resources changed.

  • calendar_update_eventUpdate Event

    Update one or more fields on an existing calendar event. For full alarm edits, list events using a native calendar_id and pass the returned native event_id. Existing applescript:: IDs continue to use automation after access changes. Optional alarms: list of {minutes_before: N} or {absolute_iso: ISO datetime}; pass [] to clear alarms, omit to leave unchanged. Replacing or clearing existing alarms, or combining explicit alarms with other field edits, requires native EventKit access. Automation rejects combined requests before any mutation, including [] or unchanged field values. Omit alarms for …

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    Stars
    28
    Forks
    4
    Open issues
    0
    Contributors
    6
    Weekly downloads
    471
    Last commit (this folder)
    Oct 21, 2026 (7 days ago)
    Last release
    Oct 22, 2026 (6 days ago)
    Last package publish
    Oct 22, 2026 (6 days ago)

    From GitHub (fetched Oct 24, 2026) and the package registry.

    Details

    Registry name
    io.github.JonathanRReed/apple-calendar-mcp
    Version
    1.1.3
    Auth
    No auth
    Packages
    pypi apple-calendar-mcpmcpb https://github.com/JonathanRReed/Apple-MCPs/releases/download/v1.1.3/apple-calendar-1.1.3.mcpb
    License
    MIT
    Repository
    github.com/JonathanRReed/Apple-MCPs
    Website
    github.com/JonathanRReed/Apple-MCPs
    First seen
    Oct 24, 2026
    Last checked
    Oct 24, 2026
    Source
    Official MCP Registrygithub-graphql

    More from JonathanRReed

    Cite this page

    Apple Calendar MCP server. Agent Mart. https://agentmart.dev/connectors/jonathanrreed-apple-calendar-mcp (last updated 2026-10-24)