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Vison-MCP

by Lin-zhibo
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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

Related MCP server: npu-vision-fallback

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

Install Server
A
license - permissive license
A
quality
B
maintenance

How are these scores calculated?

Maintenance

–Maintainers
–Response time
–Release cycle
–Releases (12mo)
Commit activity

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