What is the key difference between Feishu User Plugin and Caldav MCP?

Feishu User Plugin belongs to the Workplace & Productivity category with local stdio execution, while Caldav MCP belongs to the Workplace & Productivity category with local stdio execution.

How do I install Feishu User Plugin or Caldav MCP 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 Feishu User Plugin and Caldav MCP free or paid?

Feishu User Plugin operates under a Free / Open Source model (No auth required). Caldav MCP operates under a Free / Open Source model (other).

Which MCP server has more tools and community activity?

Feishu User Plugin lists 6 tools with 1 views and 10 GitHub stars. Caldav MCP lists 22 tools with 2 views and 103 GitHub stars.

Can I use both Feishu User Plugin and Caldav MCP 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

Feishu User Plugin vs Caldav MCP

In-depth architectural comparison of the Feishu User Plugin and Caldav MCP 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

Feishu User Plugin

Workplace & Productivity · Local stdio

Quality: 52/100 (Good) | Auth: No auth required

Caldav MCP

Workplace & Productivity · Local stdio

Quality: 63/100 (Good) | Auth: other

Verdict Summary: Choose Feishu User Plugin if you need specialized Workplace & Productivity tools running via a local process. Choose Caldav MCP if your workspace requires Workplace & Productivity integration with local subprocess execution. Both servers can be configured concurrently in your client's mcpServers manifest.

Which MCP Server Should You Choose?

Choose Feishu User Plugin when:

You need dedicated capabilities in the Workplace & Productivity domain.
You prefer local stdio subprocess transport architecture.
Your security boundary fits: No auth required (Free / Open Source).
You have access to required keys: LARK_COOKIE, LARK_APP_ID, LARK_APP_SECRET, LARK_USER_ACCESS_TOKEN, LARK_USER_REFRESH_TOKEN.
Primary tools included: User-identity messaging through cookie or OAuth paths, Official Feishu API access with app credentials, Document, bitable, wiki, and drive operations.

Explore Feishu User Plugin Details

Choose Caldav MCP when:

You need dedicated capabilities in the Workplace & Productivity domain.
You prefer local stdio subprocess transport architecture.
Your security boundary fits: other (Free / Open Source).
You have access to required keys: .

Feature & Specification Comparison

Specification	Feishu User Plugin EthanQC Workplace & Productivity	Caldav MCP Workplace & Productivity
Summary	All-in-one Feishu/Lark MCP server (84 tools). Send messages as the actual user (not bot), plus full official-API coverage of docs, bitable, wiki, drive, calendar, tasks, OKR. Cookie + OAuth UAT + app-credential auth.	CalDAV calendar operations (list, create, update, delete events) as MCP tools.
Category & Scope	Workplace & Productivity

Tools & Capabilities Breakdown

Feishu User Plugin Tools (6)

User-identity messaging through cookie or OAuth paths

Official Feishu API access with app credentials

Document, bitable, wiki, and drive operations

Calendar, Task v2, OKR, and contact tools

Multi-profile credential management

Machine-level WebSocket event delivery

Caldav MCP Tools (22)

start

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).

Feishu User Plugin Configuration

mcpServers (Claude Desktop / Cursor)

{
  "mcpServers": {
    "ethanqc-feishu-user-plugin": {
      "command": "npx",
      "args": [
        "-y",
        "feishu-user-plugin"
      ],
      "env": {
        "LARK_COOKIE": "YOUR_LARK_COOKIE_HERE",
        "LARK_APP_ID": "YOUR_LARK_APP_ID_HERE",
        "LARK_APP_SECRET": "YOUR_LARK_APP_SECRET_HERE",
        "LARK_USER_ACCESS_TOKEN": "YOUR_LARK_USER_ACCESS_TOKEN_HERE",
        "LARK_USER_REFRESH_TOKEN": "YOUR_LARK_USER_REFRESH_TOKEN_HERE"
      }
    }
  }
}

Caldav MCP Configuration

mcpServers (Claude Desktop / Cursor)

{
  "mcpServers": {
    "caldav-mcp": {
      "command": "npx",
      "args": [
        "caldav-mcp"
      ],
      "env": {
        "CALDAV_BASE_URL": "YOUR_CALDAV_BASE_URL_HERE",
        "CALDAV_USERNAME": "YOUR_CALDAV_USERNAME_HERE",
        "CALDAV_PASSWORD": "YOUR_CALDAV_PASSWORD_HERE"
      }
    }
  }
}

Frequently Asked Questions

Feishu User Plugin is categorized under Workplace & Productivity and uses a local stdio subprocess. In contrast, Caldav MCP belongs to Workplace & Productivity using local stdio subprocess. Select Feishu User Plugin when you need capabilities focused on workplace & productivity and Caldav MCP when you require tools for workplace & productivity.

More alternatives to Feishu User Plugin More alternatives to Caldav MCP Workplace & Productivity category hub Canonical compare URL