Apple Calendar MCP Server

What the code does

We read the source, 1 h ago · rules 995398eba69f

What this server is able to do. For an MCP server this is often the job itself — a terminal server runs commands because that is what it is for. Listed so you know what you are plugging in, not as an accusation.

  let open = Process()

    return execSync(cmd, { encoding: "utf8", stdio: ["ignore", "pipe", "ignore"] }).trim();

    __GIT_COMMIT__: JSON.stringify(process.env.GIT_COMMIT || tryGit("git rev-parse --short HEAD")),

Found in continuous integration, deployment or infrastructure files, or in a neighbouring package of the same monorepo. None of this is installed when you add the server: it describes how the project is built and released. We list it because a leaked key in a build pipeline is still a real problem, but it is not something this server does on your machine.

      - name: Sign the update 🔏
        env:
          SPARKLE_ED_PRIVATE_KEY: ${{ secrets.SPARKLE_ED_PRIVATE_KEY }}

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Connect this server

This server runs on your own machine — install it with the package manager and the client starts it for you. Package name taken from the official registry entry.

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

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

[mcp_servers.mcp-apple-calendar]
command = "npx"
args = ["-y", "@mgcrea/mcp-apple-calendar"]

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

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

Optional settings from the registry entry, left out of the block above: APPLE_CALENDAR_ALLOW_WRITES (Register the mutating tools. Off by default, and the gate decides whether the write tools exist at all rather than merely refusing — an agent with writes off cannot see them), APPLE_CALENDAR_CALENDARS (Restrict every read and write to these calendars, by name), APPLE_CALENDAR_ACCOUNTS (Restrict every read and write to these Calendar accounts, by name or id. Bounds reading, not just writing).