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🤔 Why

Enterprise WeChat documents sit behind SSO. AI assistants can't access them.

This MCP server bridges the gap: provide your browser cookie once, and the server handles authenticated fetching + HTML-to-Markdown conversion on every request.

💬 "帮我看下这个文档: https://doc.weixin.qq.com/doc/w3_xxx"
         │
         ▼
   ┌─────────────┐     🍪      ┌──────────────┐     📝     ┌──────────┐
   │ Claude Code  │ ──Cookie──▶ │  MCP Server   │ ──HTML──▶ │ Markdown │
   └─────────────┘             └──────────────┘            └──────────┘

🛠️ Tools

Tool	Description
📖 fetch_wecom_doc	Fetch a document by URL → return Markdown
🍪 set_wecom_cookie	Save cookie locally (chmod 600)
✅ check_wecom_auth	Verify if saved cookie is still valid

🚀 Quick Start

Step 1 — Install

git clone https://github.com/Tiansiyu-tj/wecom-doc-mcp.git
cd wecom-doc-mcp
npm install

Step 2 — Register with Claude Code

Add to ~/.mcp.json:

{
  "mcpServers": {
    "wecom-doc": {
      "command": "npx",
      "args": ["tsx", "/path/to/wecom-doc-mcp/src/index.ts"]
    }
  }
}

Step 3 — Get Your Cookie 🍪

1. 🌐  Open doc.weixin.qq.com → log in
2. 🔧  F12 → Network tab
3. 📋  Click any request → copy the Cookie header value

Step 4 — Use It

You:    帮我设置企业微信 Cookie: <paste>
Claude: ✅ Cookie 已保存

You:    帮我看下这个文档: https://doc.weixin.qq.com/doc/w3_xxx
Claude: # 文档标题
        这是文档的内容...

📐 Architecture

                          wecom-doc-mcp
                    ┌─────────────────────┐
                    │                     │
  fetch_wecom_doc ──┤  📡 /dop-api/opendoc│
        │           │  Call WeChat's       │
        │           │  internal API for    │──── 📝 Markdown
        │           │  document JSON data  │
        │           │                     │
        │           │  🧹 cleanDocText    │
        │           │  Strip HYPERLINK     │
        │           │  markup → clean text │
        │           │                     │
        │           │  📄 Fallback:       │
        │           │  cheerio + turndown  │
        │           └─────────────────────┘
        │
  set_wecom_cookie ─── 💾 ~/.claude/wecom-doc-mcp/.env (mode 600)
        │
  check_wecom_auth ─── 🏥 GET doc.weixin.qq.com → 200?

🔐 Cookie Auth

Two modes, your choice:

Mode	How	When
💾 Persistent	set_wecom_cookie → saved to ~/.claude/wecom-doc-mcp/.env	Set once, use forever (until expiry)
⚡ Per-request	Pass cookie param to fetch_wecom_doc	Override on the fly

🔒 Cookie file lives outside the project directory — never committed, never shared, chmod 600.

📑 Supported Document Types

Type	URL Pattern	Status
📝 Documents	/doc/	✅ Verified
📊 Spreadsheets	/sheet/	🔧 Untested
🎞️ Slides	/slide/	🔧 Untested
🧠 Mind Maps	/mind/	✅ Verified
🔀 Flowcharts	/flowchart/	🔧 Untested
📋 Smart Sheets	/smartsheet/	🔧 Untested

📦 Tech Stack

Dependency	Purpose
@modelcontextprotocol/sdk	MCP protocol implementation
cheerio	HTML parsing
turndown	HTML → Markdown conversion
tsx	TypeScript runtime

📄 License

MIT

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