What is the key difference between Inbox Zero and Feishu User Plugin?

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

How do I install Inbox Zero or Feishu User Plugin 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 Inbox Zero and Feishu User Plugin free or paid?

Inbox Zero operates under a Freemium model (OAuth 2.0). Feishu User Plugin operates under a Free / Open Source model (No auth required).

Which MCP server has more tools and community activity?

Inbox Zero lists 4 tools with 1 views and 12,424 GitHub stars. Feishu User Plugin lists 6 tools with 1 views and 10 GitHub stars.

Can I use both Inbox Zero and Feishu User Plugin 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

Inbox Zero vs Feishu User Plugin

In-depth architectural comparison of the Inbox Zero and Feishu User Plugin 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

Inbox Zero

Workplace & Productivity · Local stdio

Quality: 60/100 (Good) | Auth: OAuth 2.0

Feishu User Plugin

Workplace & Productivity · Local stdio

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

Verdict Summary: Choose Inbox Zero if you need specialized Workplace & Productivity tools running via a local process. Choose Feishu User Plugin 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 Inbox Zero when:

You need dedicated capabilities in the Workplace & Productivity domain.
You prefer local stdio subprocess transport architecture.
Your security boundary fits: OAuth 2.0 (Freemium).
Primary tools included: Finds emails requiring replies, Finds emails requiring follow-up, Connects Inbox Zero functionality to Gmail.

Explore Inbox Zero Details

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.

Feature & Specification Comparison

Specification	Inbox Zero elie222 Workplace & Productivity	Feishu User Plugin EthanQC Workplace & Productivity
Summary	An MCP server for Inbox Zero. Adds functionality on top of Gmail like finding out which emails you need to reply to or need to follow up on.	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.
Category & Scope

Tools & Capabilities Breakdown

Inbox Zero Tools (4)

Finds emails requiring replies

Finds emails requiring follow-up

Connects Inbox Zero functionality to Gmail

Exposes email work items through MCP

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

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).

Inbox Zero Configuration

mcpServers (Claude Desktop / Cursor)

{
  "mcpServers": {
    "elie222-inbox-zero": {
      "command": "npx",
      "args": [
        "-y",
        "@inbox-zero/cli"
      ]
    }
  }
}

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"
      }
    }
  }
}

Frequently Asked Questions

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

More alternatives to Inbox Zero More alternatives to Feishu User Plugin Workplace & Productivity category hub