Calendar.app vs Google Contacts

In-depth architectural comparison of the Calendar.app and Google Contacts MCP servers. Compare execution transports, security boundaries, tool capabilities, quality scores, and ready-to-paste client installation snippets for Claude, Cursor, Windsurf, and VS Code.

Which MCP Server Should You Choose?

C

Choose Calendar.app when:

• You need dedicated capabilities in the Developer Tools domain.
• You prefer local stdio subprocess transport architecture.
• Your security boundary fits: No auth required (Free / Open Source).
• Primary tools included: list_calendars, list_events, get_event.

Explore Calendar.app Details

Choose Google Contacts when:

• You need dedicated capabilities in the Developer Tools domain.
• You prefer remote streaming HTTP/SSE transport architecture.
• Your security boundary fits: No auth required (Free / Open Source).

Explore Google Contacts Details

Feature & Specification Comparison

Specification	C Calendar.app Developer Tools	Google Contacts Developer Tools
Summary	List, search, and manage calendar events via macOS Calendar.app across all configured accounts.	Allow AI systems to list, search, and manage contacts via Google Contacts.
Category & Scope	Developer Tools	Developer Tools
Quality signal

Tools & Capabilities Breakdown

Ready-to-Paste Client Configurations

Paste either (or both) of these JSON server blocks into your client config file (e.g. claude_desktop_config.json or ~/.cursor/mcp.json).

{
  "mcpServers": {
    "calendar-app": {
      "command": "npx",
      "args": [
        "-y",
        "@p-l-ta/calendar-mcp"
      ]
    }
  }
}

{
  "mcpServers": {
    "google-contacts": {
      "url": "https://console.cloud.google.com/"
    }
  }
}

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