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Wechat Dev MCP Server

@jiawei686

代码仓库

基本信息

分类

AI 与智能体

许可证

MIT

传输方式

stdio

作者

jiawei686

提交者

Felix CUI

关于 Wechat Dev MCP Server

mcp server for wechat dev tools

#wechat#dev#miniprogram#minigame

Wechat Dev MCP Server 配置

使用下面的配置,将此服务器添加到你的 MCP 客户端。

{
  "mcpServers": {
    "wechat-devtools": {
      "command": "npx",
      "args": [
        "-y",
        "wechat-dev-mcp"
      ]
    }
  }
}

Wechat Dev MCP Server 工具

9

Launch and connect to WeChat Developer Tools. [REQUIRED INITIAL STEP] Use this tool first to start controlling a mini-program. Requires the absolute project path.

Connect to an already running WeChat Developer Tools instance via WebSocket. Use this if 'launch' fails or you want to attach to an existing session.

[CRITICAL] Use this tool to verify if the mini-program is running correctly after ANY code changes. It returns the current page path, network status, and recent console errors.

Navigate to a specific page in the mini-program.

Get the data of the current page. Useful for verifying state changes after interactions or API calls.

Set data on the current page. Use this to mock state or trigger UI updates for testing.

Get information about an element (text, wxml, attributes, computed style) or interact with it (tap, input, trigger). Use this to inspect UI or perform actions.

Call a method on the current page.

Disconnect from the mini-program.

概览

What is Wechat Dev Mcp?

It controls WeChat Developer Tools and mini‑programs/mini‑games via the Model Context Protocol (MCP). It works with Claude Desktop, Cursor, Windsurf, and any MCP-compatible AI agent.

How to use Wechat Dev Mcp?

Install Node.js v18+ and enable the Service Port in WeChat DevTools (设置 → 安全设置 → 服务端口). Add the server configuration (using npx -y wechat-dev-mcp or a globally installed wechat-dev-mcp command) to your MCP client’s settings. Then use the provided tools to launch, connect, and automate DevTools.

Key features of Wechat Dev Mcp

  • 36 tools covering connection, navigation, and interaction
  • Automated launch and WebSocket connection to DevTools
  • Element interaction: tap, long-press, input text
  • Code execution: evaluate JavaScript and call wx.* APIs
  • Mini‑game specific tools (info, user info, cloud storage)
  • Debugging: console logs, screenshots, health checks

Use cases of Wechat Dev Mcp

  • Debug and test mini‑program pages (state, UI, navigation)
  • Automate repetitive DevTools operations (build npm, deploy cloud functions)
  • Interact with mini‑games: run scripts, call APIs, check logs
  • Integrate WeChat DevTools into CI/CD or AI‑assisted workflows
  • Verify code changes with health checks after each modification

常见问题

1

What prerequisites are needed?

Node.js v18+, WeChat DevTools installed with the Service Port enabled, and an open mini‑program or mini‑game project.

2

How do I connect to a running DevTools instance?

Use the `launch` tool (opens DevTools and a project) or the `connect` tool (connects via WebSocket, default `ws://localhost:9420`).

3

What should I do if I get a "Connection refused" error?

Ensure DevTools is running and the Service Port is enabled in the settings. Then retry the connection.

4

Can I use page tools (e.g., `get_element`) on a mini‑game?

No. Page tools return clear errors if used on a game project. Use `evaluate`, `call_wx_method`, or the `game_*` tools instead.

5

How can I verify everything works after making code changes?

Run the `check_health` tool. It checks connection, page path, network, console errors, and project type.

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