# Js Reverse MCP (MCP server)

> Js Reverse MCP is an MCP server that adds web browsing tools to AI assistants such as Claude Desktop, Claude Code and Cursor. AI Agent-first JS 逆向 MCP Server：有头 Chrome 调试、断点、网络/WebSocket 分析、Patchright 反检测，可选 CloakBrowser。. It has 2,898 GitHub stars, is released under the Apache-2.0 license and runs locally with npx -y js-reverse-mcp.

AI-first / AI-native 的 JavaScript 逆向工程 MCP Server，让你的 AI 编码助手（如 Claude、Cursor、Copilot）能够像分析师一样持续调试、定位、保存和复盘网页中的 JavaScript 行为。

## Key facts

| Fact | Value |
|---|---|
| Repository | https://github.com/zhizhuodemao/js-reverse-mcp |
| GitHub stars | 2,898 |
| License | Apache-2.0 |
| Language | TypeScript |
| Transport | stdio |
| Packages | npm: js-reverse-mcp |
| Remote URL | none |
| Needs API key | no |
| Official | no |
| Works with | Claude Desktop, Claude Code, Cursor, VS Code |
| Category | Web & browsing |
| Latest release | v4.0.5 (Sep 3, 2026) |
| Last commit | Sep 3, 2026 |

## Install

### Claude Desktop (claude_desktop_config.json)

```json
{
  "mcpServers": {
    "js-reverse-mcp": {
      "command": "npx",
      "args": [
        "-y",
        "js-reverse-mcp"
      ]
    }
  }
}
```

Settings > Developer > Edit Config. macOS: ~/Library/Application Support/Claude/, Windows: %APPDATA%\Claude\. Restart Claude Desktop afterwards.

### Claude Code

```sh
claude mcp add --transport stdio js-reverse-mcp -- npx -y js-reverse-mcp
```

### Cursor (.cursor/mcp.json)

```json
{
  "mcpServers": {
    "js-reverse-mcp": {
      "type": "stdio",
      "command": "npx",
      "args": [
        "-y",
        "js-reverse-mcp"
      ]
    }
  }
}
```

Project file; use ~/.cursor/mcp.json to enable it in every project.

### VS Code (.vscode/mcp.json)

```json
{
  "servers": {
    "js-reverse-mcp": {
      "type": "stdio",
      "command": "npx",
      "args": [
        "-y",
        "js-reverse-mcp"
      ]
    }
  }
}
```

Config formats checked against the official docs on 2026-10-07.

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