Microsoft 365 Calendar

Microsoft 365 Calendar is a local MCP server: Microsoft 365 Outlook calendar via Graph: list, get, create, update, respond, free/busy. Install it from npm as @mindstone/mcp-server-microsoft-calendar.

Claude CodeCodexAntigravity

commandprompt

Terminal

claude mcp add mcp-server-microsoft-calendar -e MS_CLIENT_ID=... -e MS_CONFIG_DIR=... -e MS_ACCOUNT_EMAIL=... -e MS_MCP_PACKAGE_ID=... -e MICROSOFT_REQUEST_TIMEOUT_MS=... -- npx -y @mindstone/mcp-server-microsoft-calendar

Run in your project folder. Add --scope user to use it everywhere.

Add to claude_desktop_config.json or .cursor/mcp.json.

{
  "mcpServers": {
    "mcp-server-microsoft-calendar": {
      "command": "npx",
      "args": [
        "-y",
        "@mindstone/mcp-server-microsoft-calendar"
      ],
      "env": {
        "MS_CLIENT_ID": "...",
        "MS_CONFIG_DIR": "...",
        "MS_ACCOUNT_EMAIL": "...",
        "MS_MCP_PACKAGE_ID": "...",
        "MICROSOFT_REQUEST_TIMEOUT_MS": "..."
      }
    }
  }
}

Fill in the environment variables with your own credentials.

• Runtime: Node.js 18+ (runs with npx).
• MCP client: Claude Code, Codex, Antigravity, Claude Desktop, Cursor or any other client that speaks MCP over stdio.
• Environment variables: MS_CLIENT_ID, MS_CONFIG_DIR, MS_ACCOUNT_EMAIL, MS_MCP_PACKAGE_ID, MICROSOFT_REQUEST_TIMEOUT_MS