# @mgcrea/mcp-apple-calendar

Search, read and act on Apple Calendar — ranges, free-time lookup, writes off by default

- **Type:** MCP server
- **Trust:** 85/100 (A), scored on the package rubric
- **Verification:** verified (build provenance)
- **Version:** 1.9.0
- **Author:** io.github.mgcrea
- **License:** MIT
- **npm:** @mgcrea/mcp-apple-calendar
- **Source:** https://github.com/mgcrea/cupertino
- **Compatible clients:** claude-code, cursor, copilot, gemini (basis: transport)

## Trust

85/100 (A), scored on the package rubric
- Publisher verified: no
- Build provenance: verified attestation
- npm trusted publishing (OIDC): yes
- Install scripts: nothing suspicious found
- Prompt-injection scan: not run
- Obfuscation scan: not run
- Evidence age: 0 days

## Security scan

- **Status:** clean
- **Scanned:** 2026-09-02T04:26:40.732Z
- **Version scanned:** 1.9.0
- **CVEs:** none found by OSV at scan time

## Tools

12 declared. Statically extracted from the shipped source — a floor on the surface, not a census.
- `apple_calendar_whats_my_day` — Read back a day or a range as something you can act on — what is fixed, what is movable, and where the real free time is. Read-only.
- `apple_calendar_schedule` — Find a time that genuinely works and put an event on the calendar. Requires writes. Note that this cannot invite anyone — it creates the event only.
- `apple_calendar_diagnostics` — Report which lanes are live, which macOS permissions are granted, and what each missing one is blocking. Start here when a tool fails or reports nothing — it na
- `apple_calendar_create_event` — Create an event. THIS IS A REAL EVENT ON A REAL CALENDAR: on an iCloud, CalDAV or Exchange calendar it syncs within seconds and there is no draft state and no u
- `apple_calendar_update_event`
- `apple_calendar_delete_events`
- `apple_calendar_find_availability`
- `apple_calendar_list_calendars` — List every calendar with the account it belongs to, whether it is SHARED with other people, and whether it looks writable. Two cautions. `isShared` means anythi
- `apple_calendar_list_accounts` — List the accounts Calendar syncs, with how many calendars each holds. Use this to scope a search when the same calendar name exists in more than one account.
- `apple_calendar_list_events` — List events in a date range, earliest first. Occurrences of repeating events are expanded, so a weekly standup appears once per week rather than once. The resul
- `apple_calendar_search_events` — Search events by text, most recent first. Unbounded in time unless you give `from` or `to`. Matches each event ONCE at its series start — it does not expand occ
- `apple_calendar_get_event` — Full detail for one event: notes, location, URL, conference link, and whether it has attendees or repeats. A ref naming one occurrence reports that occurrence's

## Install

**Verdict: install** — No blocking findings and no open coverage gaps — safe to install as configured.
**Config** (claude-code):
```json
"{\n  \"mcpServers\": {\n    \"mcp-apple-calendar\": {\n      \"command\": \"npx\",\n      \"args\": [\n        \"-y\",\n        \"@mgcrea/mcp-apple-calendar\"\n      ]\n    }\n  }\n}"
```

## Blast radius

Extensive to critical — no credential declaration found, from the publisher, the upstream registry, or the README. Known so far: deletes data; runs on your machine.
- Floor 36, ceiling 60 (tier: unknown)
- `unknown` means the floor and ceiling land in different bands — not measured enough to name one. It does not mean low.
- This is impact, not likelihood. A high radius is not a defect: a filesystem server is supposed to write files. It is never part of the trust score.

## Machine-readable views of this entry

- Signed JSON: https://forgeregistry.com/api/v1/packages/%40mgcrea%2Fmcp-apple-calendar
- Install plan: https://forgeregistry.com/api/v1/packages/%40mgcrea%2Fmcp-apple-calendar/install-plan
- Alternatives: https://forgeregistry.com/api/v1/alternatives/%40mgcrea%2Fmcp-apple-calendar
- HTML page: https://forgeregistry.com/registry/%40mgcrea%2Fmcp-apple-calendar
- MCP: POST https://forgeregistry.com/api/mcp → `forge_get_package` / `forge_install_plan`

## About this document

Generated by Forge (https://forgeregistry.com) — a compact rendering of the same record served, signed, at the JSON URL above. Trust and scan facts are the registry's own measurements; anything Forge did not measure is named as unmeasured rather than omitted.