# Apple Calendar (npm · @mgcrea/mcp-apple-calendar)

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

- Trust score: 49/100 (low)
- Change this week: 0
- Registry status: active
- Liveness: live
- Owner verified: no
- Last scored: 2026-09-20

## Components

- npm · `@mgcrea/mcp-apple-calendar`: 49/100 (this document), [markdown](https://verifymcp.io/servers/mgcrea-mcp-apple-calendar/mgcrea-mcp-apple-calendar.md), [page](https://verifymcp.io/servers/mgcrea-mcp-apple-calendar/mgcrea-mcp-apple-calendar)

## Channel facts

- Registry: `npm`
- Package: `@mgcrea/mcp-apple-calendar`
- Version: `1.23.0`
- 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 2026-09-20.

- **Supply Chain Security**: 98/100
  - No malware found by supply-chain analysis.
  - No known CVEs affecting this package version or its production dependencies.
  - No install/post-install scripts declared.
  - 31 of 96 dependencies flagged as unhealthy.
- **Provenance & Transparency**: 97/100
  - Source repository is publicly reachable at the declared URL.
  - Cryptographically verified build provenance (signed, bound to mgcrea/cupertino).
  - Clear OSI-approved license (MIT).
  - Actively maintained (last published 0 days ago).
  - Disclosure check failed: no security disclosure policy was found in the source repository.
- **Schema Quality & AI Usability**: 0/100
  - Schema quality not yet verified: this package could not be installed in a clean environment, so we have no schema to assess.
- **Stability & Change Management**: 0/100
  - Stability not yet verified: this package could not be installed in a clean environment, so we have no schema to compare.
- **Tool Coverage**: 0/100
  - Tool coverage not yet verified: this package could not be installed in a clean environment, so we have no tool definitions to assess.
- **Tool Safety**: 0/100
  - Tool safety not yet verified: this package could not be installed in a clean environment, so we have no tool text to scan.
- **Capabilities**: 0/100
  - Protocol version not yet verified: this package could not be installed in a clean environment, so we never saw its MCP handshake.

**Unverified: 5 categories.** Categories scored 0 because our sandbox run of this package has not given us the schema these checks need to read. That is a gap on our side rather than a finding about the package, and we only credit what we can confirm, so the score stands at 0 until the capture succeeds. We are working through the fleet, so this normally clears without any action from you.

## Install

### How do I install the Apple Calendar MCP server?

Apple Calendar runs locally as an npm package, launched with npx -y @mgcrea/mcp-apple-calendar. Ready-made configuration for Claude, Cursor, VS Code, Codex and 5 more is on this page, copied from each client's own documentation.

### Claude

```bash
claude mcp add mgcrea-mcp-apple-calendar -- npx -y @mgcrea/mcp-apple-calendar
```

### Cursor

```json
{
  "mcpServers": {
    "mgcrea-mcp-apple-calendar": {
      "command": "npx",
      "args": [
        "-y",
        "@mgcrea/mcp-apple-calendar"
      ]
    }
  }
}
```

### VS Code

```json
{
  "servers": {
    "mgcrea-mcp-apple-calendar": {
      "command": "npx",
      "args": [
        "-y",
        "@mgcrea/mcp-apple-calendar"
      ]
    }
  }
}
```

### Codex

```bash
codex mcp add mgcrea-mcp-apple-calendar -- npx -y @mgcrea/mcp-apple-calendar
```

### opencode

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

### OpenClaw

```bash
openclaw mcp add mgcrea-mcp-apple-calendar --command npx --arg -y --arg @mgcrea/mcp-apple-calendar
```

### Hermes

```yaml
mcp_servers:
  mgcrea-mcp-apple-calendar:
    command: "npx"
    args: ["-y", "@mgcrea/mcp-apple-calendar"]
```

### Netclaw

```json
{
  "McpServers": {
    "mgcrea-mcp-apple-calendar": {
      "Transport": "stdio",
      "Command": "npx",
      "Arguments": [
        "-y",
        "@mgcrea/mcp-apple-calendar"
      ]
    }
  }
}
```

### Vellum

```bash
assistant mcp add mgcrea-mcp-apple-calendar -t stdio -c npx -a -y @mgcrea/mcp-apple-calendar
```

### Other

```json
{
  "mcpServers": {
    "mgcrea-mcp-apple-calendar": {
      "command": "npx",
      "args": [
        "-y",
        "@mgcrea/mcp-apple-calendar"
      ]
    }
  }
}
```

## 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.

### 2026-09-19 (score 49, 0)

- [functional regression] Security disclosure: fail → unverified
- [functional] Package version: 1.22.1 → 1.23.0

### 2026-09-18 (score 49, 0)

- [security improvement] Known CVEs: partial → pass
- [functional] Dependency health: partial → 0.85

### 2026-09-17 (score 49, +15)

- [security improvement] Malware scan: unverified → pass
- [security] Stability: Stability not yet verified: this package could not be installed in a clean environment, so we have no schema to compare.
- [security] Tool safety: Tool safety not yet verified: this package could not be installed in a clean environment, so we have no tool text to scan.
- [functional] Schema quality: Schema quality not yet verified: this package could not be installed in a clean environment, so we have no schema to assess.
- [functional] Capabilities: Protocol version not yet verified: this package could not be installed in a clean environment, so we never saw its MCP handshake.
- [functional] Tool coverage: Tool coverage not yet verified: this package could not be installed in a clean environment, so we have no tool definitions to assess.

### 2026-09-16 (score 34, −15)

- [security regression] Malware scan: pass → unverified
- [security regression] Known CVEs: pass → partial
- [security] Tool safety: Tool safety not yet verified: we do not have a sandbox capture of the tool definitions this version of the package serves yet.
- [security] Stability: Stability not yet verified: we do not have a sandbox capture of the MCP schema this version of the package serves yet.
- [functional] Capabilities: Protocol version not yet verified: we do not have a sandbox capture of the MCP handshake this version of the package performs yet.
- [functional] Tool coverage: Tool coverage not yet verified: we do not have a sandbox capture of the tool definitions this version of the package serves yet.
- [functional] Schema quality: Schema quality not yet verified: we do not have a sandbox capture of the MCP schema this version of the package serves yet.
- [functional] Dependency health: 0.85 → partial
- [functional] Package version: 1.21.1 → 1.22.1

### 2026-09-12 (score 49, +15)

- [security improvement] Malware scan: unverified → pass
- [security] Stability: Stability not yet verified: this package could not be installed in a clean environment, so we have no schema to compare.
- [security] Tool safety: Tool safety not yet verified: this package could not be installed in a clean environment, so we have no tool text to scan.
- [functional] Schema quality: Schema quality not yet verified: this package could not be installed in a clean environment, so we have no schema to assess.
- [functional] Capabilities: Protocol version not yet verified: this package could not be installed in a clean environment, so we never saw its MCP handshake.
- [functional] Tool coverage: Tool coverage not yet verified: this package could not be installed in a clean environment, so we have no tool definitions to assess.

### 2026-09-11 (score 34, 0)

- [security improvement] Malware scan: unverified → pass
- [security] Tool safety: Tool safety not yet verified: we do not have a sandbox capture of the tool definitions this version of the package serves yet.
- [security] Stability: Stability not yet verified: we do not have a sandbox capture of the MCP schema this version of the package serves yet.
- [functional] Capabilities: Protocol version not yet verified: we do not have a sandbox capture of the MCP handshake this version of the package performs yet.
- [functional] Tool coverage: Tool coverage not yet verified: we do not have a sandbox capture of the tool definitions this version of the package serves yet.
- [functional] Schema quality: Schema quality not yet verified: we do not have a sandbox capture of the MCP schema this version of the package serves yet.
- [functional] Package version: 1.21.0 → 1.21.1

### 2026-09-10 (score 34, −15)

- [security regression] Malware scan: pass → unverified
- [security improvement] Known CVEs: partial → pass
- [functional] Dependency health: partial → 0.85
- [functional] Package version: 1.20.1 → 1.21.0

### 2026-09-09 (score 49, 0)

- [security regression] Known CVEs: pass → partial
- [functional] Dependency health: 0.85 → partial
- [functional] Package version: 1.20.0 → 1.20.1

## MCP tools (0)

Tools for package channels are captured by running the package in an isolated sandbox. The most recent sandbox run could not capture a tool list from this package.

## Diagnostics

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

## Score history

- 2026-09-20: 49
- 2026-09-19: 49
- 2026-09-18: 49
- 2026-09-17: 49
- 2026-09-16: 34
- 2026-09-15: 49
- 2026-09-14: 49
- 2026-09-13: 49
- 2026-09-12: 49
- 2026-09-11: 34
- 2026-09-10: 34
- 2026-09-09: 49
- 2026-09-08: 49
- 2026-09-07: 38
- 2026-09-06: 49
- 2026-09-05: 49
- 2026-09-04: 49
- 2026-09-03: 38
- 2026-09-02: 49
- 2026-09-01: 49

## Common questions

### What is the Apple Calendar MCP server?

Apple Calendar is an MCP server listed in the public MCP registry as io.github.mgcrea/mcp-apple-calendar. Search, read and act on Apple Calendar, ranges, free-time lookup, writes off by default. This page covers its npm package (@mgcrea/mcp-apple-calendar).

### Is the Apple Calendar MCP server safe to use?

Apple Calendar scores 49 out of 100 on VerifyMCP. We found no known CVEs affecting it as of 20 September 2026. It declares no install or post-install scripts. Its build provenance is signed and verified. That is a record of what we were able to check automatically, not an endorsement. The category breakdown on this page shows every signal behind the number, including the ones we could not confirm.

### Is the Apple Calendar MCP server still maintained?

Apple Calendar is still listed as active in the MCP registry. We last reached this channel on 20 September 2026. Those dates come from our own scans of the registry and the channel itself, not from anything the publisher announced.

### What licence is the Apple Calendar MCP server under?

Apple Calendar declares the MIT licence, which is OSI-approved. That covers the source only, and says nothing about the cost of any service it calls.

## Links

- npm package: https://www.npmjs.com/package/@mgcrea/mcp-apple-calendar
- Socket report: https://socket.dev/npm/package/@mgcrea/mcp-apple-calendar
- Repository: https://github.com/mgcrea/cupertino
- Website: https://cupertino.mgcrea.io/
- Changelog RSS feed: https://verifymcp.io/servers/mgcrea-mcp-apple-calendar/mgcrea-mcp-apple-calendar.xml
- Changelog JSON feed: https://verifymcp.io/servers/mgcrea-mcp-apple-calendar/mgcrea-mcp-apple-calendar.json
- HTML version of this page: https://verifymcp.io/servers/mgcrea-mcp-apple-calendar/mgcrea-mcp-apple-calendar