Qwen Vision MCP Server

MCP server for Alibaba Qwen3.7-plus (multimodal vision model), connected via DashScope's Anthropic-compatible endpoint.

Features

• Single tool: qwen_vision_understand — analyze an image with Qwen3.7-plus
• Supports local image files (png/jpg/jpeg/gif/webp/bmp) and remote URLs
• Same Anthropic Messages API format as Claude
• Token usage reported back in each response

Requirements

• Node.js >= 18
• A DashScope API key — get one at https://dashscope.console.aliyun.com/apiKey

Install

cd qwen-vision-mcp-server
npm install

Configuration

Environment variables:

| Variable | Required | Default | Description | |---|---|---|---| | DASHSCOPE_API_KEY | ✅ | — | Your DashScope API key | | QWEN_MODEL | | qwen3.7-plus | Model name (e.g. qwen-vl-plus, qwen3-vl-plus) | | QWEN_BASE_URL | | https://dashscope.aliyuncs.com/apps/anthropic/v1/messages | Override endpoint | | QWEN_MAX_TOKENS | | 4096 | Default max output tokens |

Run locally

DASHSCOPE_API_KEY=sk-xxx npm start

CC-Switch / Claude Code config

{
  "mcpServers": {
    "qwen-vision": {
      "type": "stdio",
      "command": "cmd",
      "args": ["/c", "npx", "-y", "qwen-vision-mcp-server"],
      "env": {
        "DASHSCOPE_API_KEY": "sk-your-dashscope-key",
        "QWEN_MODEL": "qwen3.7-plus"
      }
    }
  }
}

Or if installed locally:

{
  "mcpServers": {
    "qwen-vision": {
      "type": "stdio",
      "command": "node",
      "args": ["E:/Projects/Claude/MCP/qwen/qwen-vision-mcp-server/src/index.js"],
      "env": {
        "DASHSCOPE_API_KEY": "sk-your-dashscope-key"
      }
    }
  }
}

Tool: qwen_vision_understand

| Parameter | Type | Required | Description | |---|---|---|---| | image | string | ✅ | Local file path or HTTP(S) URL | | prompt | string | ✅ | What to ask about the image | | max_tokens | number | | Max output tokens (default 4096) | | temperature | number | | 0-2, default 1 |

Example:

Use qwen_vision_understand to analyze this UI mockup: 
/Users/me/Downloads/login-page.png
"Recreate this as HTML with Tailwind CSS"

License

MIT