# Apple Calendar (pypi · apple-calendar-mcp)

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

- Trust score: 68/100 (medium)
- Change this week: +6
- Registry status: active
- Liveness: live
- Owner verified: no
- Last scored: 2026-08-18

## Components

- mcpb · `apple-calendar-1.0.2.mcpb`: 17/100, [markdown](https://verifymcp.io/servers/jonathanrreed-apple-calendar-mcp/https-github-com-jonathanrreed-apple-mcps-releases-download-v1-0-2-apple-calenda.md), [page](https://verifymcp.io/servers/jonathanrreed-apple-calendar-mcp/https-github-com-jonathanrreed-apple-mcps-releases-download-v1-0-2-apple-calenda)
- pypi · `apple-calendar-mcp`: 68/100 (this document), [markdown](https://verifymcp.io/servers/jonathanrreed-apple-calendar-mcp/apple-calendar-mcp.md), [page](https://verifymcp.io/servers/jonathanrreed-apple-calendar-mcp/apple-calendar-mcp)

## Channel facts

- Registry: `pypi`
- Package: `apple-calendar-mcp`
- Version: `1.0.2`
- Transport: `stdio`

## Trust breakdown

How this component scores in each security and reliability category. Every signal is checked automatically from public evidence about the published package, including repeated runs of it in an isolated sandbox, and we only credit what we can confirm. Scores are 0–100 per category. Scoring method: https://verifymcp.io/docs/scoring (what has changed: https://verifymcp.io/docs/scoring/changelog)

Scored 2026-08-18.

- **Supply Chain Security**: 100/100
  - No malware found by supply-chain analysis.
  - No known CVEs affecting this package version or its production dependencies.
  - Runs setuptools.build_meta at install time, a recognised native-build step with no shell scripting around it.
  - 2 of 31 dependencies flagged as unhealthy.
- **Provenance & Transparency**: 35/100
  - Source repository is publicly reachable at the declared URL.
  - Provenance check failed: no build-provenance attestation is published.
  - License check failed: no license is declared.
  - Actively maintained (last published 12 days ago).
  - Publishes a security disclosure policy (SECURITY.md).
- **Schema Quality & AI Usability**: 64/100
  - 50% of prompts and resources have a non-trivial description (not blank, and not just the item's name).
  - AI-judged instruction clarity (good).
  - Tool/resource definitions use about 564 tokens (~37/item across 15 items; 13 tools + 2 resources), lean.
  - Usage-examples check failed: none of the tools include examples.
- **Stability & Change Management**: 40/100
  - Stability observed for 12 of 30 days with no destabilising changes; credit accrues until the full window elapses.
- **Tool Coverage**: 71/100
  - 100% of tools have a non-trivial description (not blank, and not just the tool's name).
  - 0% of tool parameters carry a description.
  - Structured output schemas are declared (100% of tools); any adoption earns full credit.
- **Capabilities**: 100/100
  - Implements a current MCP spec version (2026-07-28).

## Install

### Claude

```bash
claude mcp add jonathanrreed-apple-calendar-mcp -- uvx apple-calendar-mcp
```

### Codex

```bash
codex mcp add jonathanrreed-apple-calendar-mcp -- uvx apple-calendar-mcp
```

### opencode

```json
{
  "$schema": "https://opencode.ai/config.json",
  "mcp": {
    "jonathanrreed-apple-calendar-mcp": {
      "type": "local",
      "command": [
        "uvx",
        "apple-calendar-mcp"
      ],
      "enabled": true
    }
  }
}
```

### OpenClaw

```bash
openclaw mcp add jonathanrreed-apple-calendar-mcp --command uvx --arg apple-calendar-mcp
```

### Hermes

```yaml
mcp_servers:
  jonathanrreed-apple-calendar-mcp:
    command: "uvx"
    args: ["apple-calendar-mcp"]
```

### Other

```json
{
  "mcpServers": {
    "jonathanrreed-apple-calendar-mcp": {
      "command": "uvx",
      "args": [
        "apple-calendar-mcp"
      ]
    }
  }
}
```

## Changelog

Every change recorded for this component, newest first. Days that predate change tracking, or that we cannot explain, say so: "we were watching and nothing happened" and "we were not watching" are different claims.

### 2026-08-18 (score 68, +1)

No change was recorded against any check on this day. Stability & Change Management went from 37 to 40. That category is still filling its 30-day observation window: 11 days of observed history at the previous scan, 12 at this one. The score rises as the window fills, whether or not the server changes.

### 2026-08-16 (score 67, +1)

No change was recorded against any check on this day. Stability & Change Management went from 30 to 33. That category is still filling its 30-day observation window: 9 days of observed history at the previous scan, 10 at this one. The score rises as the window fills, whether or not the server changes.

### 2026-08-14 (score 66, +4)

- [functional improvement] Stability: unverified → 0.27

### 2026-08-11 (score 62, +3)

- [functional] We updated how we score, so this day's move reflects our rubric, not a change to the server

### 2026-08-07 (score 59, +1)

- [functional improvement] Security disclosure: fail → pass

### 2026-08-06 (score 58, +22)

- [security] Stability: Stability not yet verified: not enough scan history yet (needs a 30-day window).
- [functional improvement] Tool coverage: unverified → 100
- [functional improvement] MCP protocol: unverified → pass
- [functional improvement] Schema quality: unverified → 50
- [functional] First check of Schema quality: fair
- [functional] First check of Tool coverage: 0
- [functional] First check of Schema quality: fail
- [functional] First check of Schema quality: pass
- [functional] First check of Tool coverage: 100

### 2026-08-05 (score 36)

First indexed and scored.

## MCP tools (13)

### `calendar_health` (~16 tokens)

Calendar Health

Report the active Apple Calendar server configuration.

Output parameters:

- `access_status` (string)
- `can_read_events` (boolean)
- `can_write_events` (boolean)
- `capabilities` (array)
- `helper_available` (boolean)
- `helper_compiled` (boolean)
- `ok` (boolean)
- `permission_error`
- `permission_suggestion`
- `safety_mode` (string)
- `server_name` (string)
- `transport` (string)
- `version` (string)

### `calendar_permission_guide` (~21 tokens)

Calendar Permission Guide

Explain how to grant Apple Calendar permission on macOS.

### `calendar_recheck_permissions` (~31 tokens)

Calendar Recheck Permissions

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

Output parameters:

- `access_status` (string)
- `can_read_events` (boolean)
- `can_write_events` (boolean)
- `capabilities` (array)
- `helper_available` (boolean)
- `helper_compiled` (boolean)
- `ok` (boolean)
- `permission_error`
- `permission_suggestion`
- `safety_mode` (string)
- `server_name` (string)
- `transport` (string)
- `version` (string)

### `calendar_list_calendars` (~17 tokens)

List Calendars

List available Apple Calendar calendars.

Output parameters:

- `result`

### `calendar_list_events` (~50 tokens)

List Events

List calendar events in a time window, optionally filtered to one calendar.

Input parameters:

- `calendar_id`
- `end_iso` (string, required)
- `limit`
- `start_iso` (string, required)

Output parameters:

- `result`

### `calendar_get_event` (~28 tokens)

Get Event

Fetch full details for a calendar event by event_id.

Input parameters:

- `event_id` (string, required)

Output parameters:

- `result`

### `calendar_create_event` (~74 tokens)

Create Event

Create a new event in a specific Apple Calendar calendar.

Input parameters:

- `all_day` (boolean)
- `calendar_id` (string, required)
- `end_iso` (string, required)
- `location`
- `notes`
- `recurrence`
- `start_iso` (string, required)
- `title` (string, required)

Output parameters:

- `result`

### `calendar_update_event` (~72 tokens)

Update Event

Update one or more fields on an existing calendar event.

Input parameters:

- `all_day`
- `calendar_id`
- `end_iso`
- `event_id` (string, required)
- `location`
- `notes`
- `recurrence`
- `start_iso`
- `title`

Output parameters:

- `result`

### `calendar_delete_event` (~25 tokens)

Delete Event

Delete a calendar event by event_id.

Input parameters:

- `event_id` (string, required)

Output parameters:

- `result`

### `calendar_list_prompts` (~21 tokens)

Calendar List Prompts

Fallback prompt discovery tool for tool-only MCP clients.

### `calendar_get_prompt` (~33 tokens)

Calendar Get Prompt

Fallback prompt rendering tool for tool-only MCP clients.

Input parameters:

- `arguments_json`
- `name` (string, required)

### `search_tools` (~50 tokens)

Search Tools

Search this server's tool catalog by keyword, alias, or domain tag.

Input parameters:

- `domain_tags`
- `limit` (integer)
- `mode` (string)
- `query` (string, required)

### `get_tool_info` (~48 tokens)

Get Tool Info

Load the full schema, examples, and metadata for one tool from this server.

Input parameters:

- `include_examples` (boolean)
- `include_schema` (boolean)
- `name` (string, required)

## Diagnostics

Captured diagnostic sections: Provenance, Install scripts, Dependencies. The full working is on the page: https://verifymcp.io/servers/jonathanrreed-apple-calendar-mcp/apple-calendar-mcp#diagnostics

## Score history

- 2026-08-18: 68
- 2026-08-17: 67
- 2026-08-16: 67
- 2026-08-15: 66
- 2026-08-14: 66
- 2026-08-13: 62
- 2026-08-12: 62
- 2026-08-11: 62
- 2026-08-10: 59
- 2026-08-09: 59
- 2026-08-08: 59
- 2026-08-07: 59
- 2026-08-06: 58
- 2026-08-05: 36

## Links

- PyPI project: https://pypi.org/project/apple-calendar-mcp/
- Socket report: https://socket.dev/pypi/package/apple-calendar-mcp
- Repository: https://github.com/JonathanRReed/Apple-MCPs
- Changelog RSS feed: https://verifymcp.io/servers/jonathanrreed-apple-calendar-mcp/apple-calendar-mcp.xml
- Changelog JSON feed: https://verifymcp.io/servers/jonathanrreed-apple-calendar-mcp/apple-calendar-mcp.json
- HTML version of this page: https://verifymcp.io/servers/jonathanrreed-apple-calendar-mcp/apple-calendar-mcp