doubao-mcp

doubao-mcp

MCP server providing zero-cost visual analysis and Q&A through Doubao web (web.doubao.com), using Playwright/CDP to control Chrome and extract AI responses.

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README

doubao-mcp

豆包 MCP Server — 通过网页版豆包(web.doubao.com)提供零 API 成本的视觉与问答能力。

基于 CDP + Playwright 接管独立 profile 的 Chrome,在豆包网页版上传图片提问、抓取 AI 回复返回,不需要豆包 API Key。

能力

工具 说明
vision_analyze 图片识别/分析(上传图片到豆包网页版提问并取回复)
video_analyze 视频分析(下载/本地 → 抽帧烧时间戳 → 拼图分块 → 豆包识别,可选本地转写)
ask_doubao 纯文本问答(复用豆包会话,支持多轮上下文)
daemon_start 启动 Chrome daemon(独立 profile,端口 9223,幂等)
daemon_status 检查 daemon 运行状态
daemon_stop 关闭 Chrome daemon

工作原理

Claude Code ──MCP stdio──> server.py ──> doubao_vision.py ──CDP──> Chrome (独立 profile)
                                        video_analyze.py              │
                                                           web.doubao.com(网页版)
  • Chrome 以 --remote-debugging-port=9223 启动独立 profile,登录态持久化
  • 图片通过 filechooser 事件上传,回复通过 DOM 特征(data-streaming 等)等待生成完成后提取
  • 纯网页操作,无 API 成本,仅需可登录豆包的 Chrome

环境要求

  • Python 3.10+
  • Chrome(自动探测 CHROME_PATH 环境变量或常见安装路径)
  • 可选:ffmpeg/ffprobe(视频抽帧)、yt-dlp(在线视频下载)、faster-whisper(音频转写)

安装

pip install fastmcp playwright websocket-client
# 可选功能依赖
pip install pillow        # 视频帧时间戳烧录
pip install faster-whisper  # 音频转写

使用

1. 作为 MCP server(Claude Code 等)

{
  "mcpServers": {
    "doubao-mcp": {
      "command": "python",
      "args": ["/path/to/doubao-mcp/server.py"]
    }
  }
}

2. HTTP 模式(调试)

python server.py --port 8080

3. 直接 CLI 调用(不含 MCP)

# 启动 Chrome daemon(首次需手动登录豆包一次,登录态持久化)
python doubao_mcp/doubao_vision.py --start

# 图片识别
python doubao_mcp/doubao_vision.py --image photo.jpg --question "请描述这张图片"

# 视频分析(本地文件或 URL)
python doubao_mcp/video_analyze.py --video demo.mp4

配置

  • Chrome 路径:设置环境变量 CHROME_PATH 指定 Chrome 可执行文件
  • CDP 端口:默认 9223,见 doubao_vision.py 中的 CDP_PORT
  • 登录态:独立 profile 位于 ~/.claude/doubao-vision-profile,首次使用 daemon_start 后手动登录一次即可

常见问题

  • 退出码 1(CDP 不可达):daemon 未启动,先运行 daemon_start
  • 退出码 2(未登录):打开豆包页面手动登录一次
  • 退出码 5(超时):豆包生成较慢,增大 --timeout
  • 退出码 6(安全过滤):回复为空,可能是风控或内容被过滤

License

MIT

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