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Apple Calendar for Grok

io.github.jonathanrreed/apple-calendar-mcp

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

client:Grok transport:stdio runtime:pypi

Install Apple Calendar in Grok

.mcp.json (in your project root)

Held in this page only — never stored, logged, or sent anywhere but back to your screen. 

{
  "mcpServers": {
    "apple-calendar-mcp": {
      "type": "stdio",
      "command": "uvx",
      "args": [
        "apple-calendar-mcp"
      ],
      "env": {
        "APPLE_CALENDAR_MCP_SAFETY_MODE": "<APPLE_CALENDAR_MCP_SAFETY_MODE>",
        "APPLE_CALENDAR_MCP_ALLOWED_CALENDARS": "<APPLE_CALENDAR_MCP_ALLOWED_CALENDARS>",
        "APPLE_CALENDAR_MCP_WRITE_ALLOWED_CALENDARS": "<APPLE_CALENDAR_MCP_WRITE_ALLOWED_CALENDARS>"
      }
    }
  }
}

Grok Build reads Claude Code's .mcp.json and Claude Desktop's config unchanged, so a server you have already set up there needs nothing new. The Grok web app and X integration do not take custom servers. Grok docs

Apple Calendar in other clients

Apple Calendar MCP server