What is the key difference between CalendarMCP and Icloud Calendar?

CalendarMCP belongs to the Developer Tools category with local stdio execution, while Icloud Calendar belongs to the Developer Tools category with local stdio execution.

How do I install CalendarMCP or Icloud Calendar in Claude Desktop or Cursor?

Copy the mcpServers JSON configuration snippet provided on this page into your claude_desktop_config.json or ~/.cursor/mcp.json file and restart your AI client.

Are CalendarMCP and Icloud Calendar free or paid?

CalendarMCP operates under a Free / Open Source model (No auth required). Icloud Calendar operates under a Free / Open Source model (No auth required).

Which MCP server has more tools and community activity?

CalendarMCP lists 10 tools with 1 views and 0 GitHub stars. Icloud Calendar lists 8 tools with 0 views and 0 GitHub stars.

Can I use both CalendarMCP and Icloud Calendar together in the same MCP host?

Yes! MCP hosts like Claude Desktop, Cursor, Windsurf, Cline, and VS Code support configuring multiple servers under the mcpServers object simultaneously.

Side-by-Side Model Context Protocol Comparison

CalendarMCP vs Icloud Calendar

In-depth architectural comparison of the CalendarMCP and Icloud Calendar 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.

At a Glance & Executive Verdict

CalendarMCP

Developer Tools · Local stdio

Quality: 49/100 (Fair) | Auth: No auth required

Icloud Calendar

Developer Tools · Local stdio

Quality: 51/100 (Good) | Auth: No auth required

Verdict Summary: Choose CalendarMCP if you need specialized Developer Tools tools running via a local process. Choose Icloud Calendar if your workspace requires Developer Tools integration with local subprocess execution. Both servers can be configured concurrently in your client's mcpServers manifest.

Which MCP Server Should You Choose?

Choose CalendarMCP 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_events, get_event, create_event.

Explore CalendarMCP Details

Choose Icloud Calendar 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 Icloud Calendar Details

Feature & Specification Comparison

Specification	CalendarMCP Developer Tools	I Icloud Calendar Developer Tools
Summary	Hosted Google Calendar MCP server for AI agents. No self-hosting or Google Cloud setup.	Manage Apple iCloud Calendar through a reliable CalDAV MCP server.
Category & Scope	Developer Tools	Developer Tools
Quality signal

Tools & Capabilities Breakdown

CalendarMCP Tools (10)

list_events

List events across one or all connected calendars in a time range. Auto-paginates up to 2500 results.

get_event

Full details of one event.

create_event

Create an event. Supports attendees, location, reminders, recurrence, all-day.

update_event

Partial update of an existing event.

delete_event

Delete an event.

quick_add_event

Create from natural language ("Lunch with Sam Friday 1pm").

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).

CalendarMCP Configuration

mcpServers (Claude Desktop / Cursor)

{
  "mcpServers": {
    "calendarmcp": {
      "command": "npx",
      "args": [
        "@modelcontextprotocol/server-fetch",
        "https://calendarmcp.ai/api/mcp"
      ]
    }
  }
}

Icloud Calendar Configuration

mcpServers (Claude Desktop / Cursor)

{
  "mcpServers": {
    "icloud-calendar": {
      "command": "npx",
      "args": [
        "-y",
        "icloud-calendar-mcp"
      ]
    }
  }
}

Frequently Asked Questions

CalendarMCP is categorized under Developer Tools and uses a local stdio subprocess. In contrast, Icloud Calendar belongs to Developer Tools using local stdio subprocess. Select CalendarMCP when you need capabilities focused on developer tools and Icloud Calendar when you require tools for developer tools.