Aruba Email & Calendar for Grok

Install Aruba Email & Calendar in Grok

.mcp.json (in your project root)

{
  "mcpServers": {
    "aruba-email": {
      "type": "stdio",
      "command": "uvx",
      "args": [
        "mcp-aruba"
      ],
      "env": {
        "EMAIL_USER": "<EMAIL_USER>",
        "EMAIL_PASSWORD": "<EMAIL_PASSWORD>",
        "IMAP_HOST": "<IMAP_HOST>",
        "SMTP_HOST": "<SMTP_HOST>",
        "CALDAV_URL": "<CALDAV_URL>"
      }
    }
  }
}

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