MCP Servers

Vison-MCP

MCP server for vision AI — screenshots to code, OCR, error diagnosis, and image analysis via OpenAI-compatible APIs.

README

Vison-MCP

MCP server for vision AI — screenshots to code, OCR, error diagnosis, and image analysis via OpenAI-compatible APIs.

Supported Tools

Tool	Description
`image_analysis`	General visual understanding — describe any image in detail
`extract_text_from_screenshot`	OCR optimized for terminals, code, documents, and general content
`ui_to_artifact`	Convert UI screenshots into code, prompts, specs, or descriptions
`diagnose_error_screenshot`	Analyze error screenshots and propose actionable fixes
`understand_technical_diagram`	Interpret architecture diagrams, flowcharts, UML, ER, and system diagrams
`analyze_data_visualization`	Read charts and dashboards to surface insights, trends, and anomalies
`ui_diff_check`	Compare two UI screenshots to flag visual differences and implementation drift
`video_analysis`	Inspect videos (MP4/MOV/M4V) — scene detection, event analysis, content summarization

Installation

git clone https://github.com/Lin-zhibo/Vison-MCP.git
cd Vison-MCP
npm install
npm run build

Configuration

Set the following environment variables:

Variable	Required	Default	Description
`VISIONAI_API_KEY`	Yes	—	API authentication key
`VISIONAI_BASE_URL`	Yes	—	OpenAI-compatible API endpoint
`VISIONAI_MODEL_NAME`	No	`gpt-4o`	Vision model to use

Usage

With Claude Code

Add to your .claude/settings.json or claude_desktop_config.json:

{
  "mcpServers": {
    "vison-mcp": {
      "command": "node",
      "args": ["/path/to/Vison-MCP/dist/index.js"],
      "env": {
        "VISIONAI_API_KEY": "your-api-key",
        "VISIONAI_BASE_URL": "https://api.openai.com/v1",
        "VISIONAI_MODEL_NAME": "gpt-4o"
      }
    }
  }
}

Local Development

# Copy environment template
cp .env.example .env
# Edit .env with your API credentials

# Build and run
npm run build
npm start

Requirements

Node.js >= 18.0.0
An OpenAI-compatible vision API endpoint (GPT-4o, Claude Vision, or compatible)

License

MIT

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