MCP its-just-ui Server for Cursor

A Model Context Protocol (MCP) server optimized for Cursor IDE, enabling AI-powered generation, customization, and documentation of its-just-ui React components directly in your editor.

🎯 Why Use This in Cursor?

• Native MCP Support: Cursor has built-in support for MCP servers via stdio

• AI-Powered Component Generation: Generate complete its-just-ui components with a simple prompt

• Contextual Awareness: The AI understands your project structure and existing code

• Zero Configuration: Works out of the box with minimal setup

Table of Contents

• 🚀 Quick Start for Cursor

• ⚙️ Cursor Configuration

• 🛠️ Available Tools in Cursor

• 💡 Cursor Usage Examples

• 📚 Alternative: Claude Desktop

• Development

• Troubleshooting

• License

🚀 Quick Start for Cursor

Option 1: NPM Package (Recommended)

# Simply add to your Cursor config - no installation needed!
# Cursor will handle everything via npx

Option 2: Local Development

# Clone and build
git clone https://github.com/its-just-ui/its-just-mcp.git
cd its-just-mcp
npm install && npm run build

Related MCP server: 21st.dev Magic AI Agent

⚙️ Cursor Configuration

Step 1: Create MCP Configuration

Project-Level (Recommended)

Create .cursor/mcp.json in your React project root:

{
  "mcpServers": {
    "its-just-ui": {
      "command": "npx",
      "args": ["-y", "its-just-mcp"],
      "env": {}
    }
  }
}

Global Configuration (All Projects)

Create ~/.cursor/mcp.json:

{
  "mcpServers": {
    "its-just-ui": {
      "command": "npx",
      "args": ["-y", "its-just-mcp"],
      "env": {}
    }
  }
}

Local Development Setup

If you're developing the MCP server locally:

{
  "mcpServers": {
    "its-just-ui": {
      "command": "node",
      "args": ["/absolute/path/to/its-just-mcp/dist/index.js"],
      "env": {}
    }
  }
}

Step 2: Restart Cursor

After adding the configuration, restart Cursor to load the MCP server.

Step 3: Verify Installation

In Cursor, you can ask the AI:

• "What MCP tools are available?"

• "Generate a Button component using its-just-ui"

🎨 Cursor-Specific Features

Inline Component Generation

Ask Cursor AI to generate components directly in your code:

"Add a primary button with loading state here"
"Create a card grid layout with 3 columns"
"Generate a login form with validation"

Context-Aware Suggestions

The MCP server understands your project context:

• Existing theme configuration

• Component usage patterns

• Project structure

Quick Commands in Cursor

• Generate: ⌘+K → "Generate [component] with [props]"

• Document: ⌘+K → "Document this its-just-ui component"

• Theme: ⌘+K → "Configure dark theme for its-just-ui"

• Form: ⌘+K → "Create a contact form with validation"

🛠️ Available Tools in Cursor

Component Generation

Theme & Styling

Forms & Documentation

💡 Cursor Usage Examples

Example 1: Generate a Component

In Cursor, simply type ⌘+K and ask:

"Generate a primary button with loading state"

The AI will use the MCP server to generate:

<Button variant="primary" loading={true}>
  Processing...
</Button>

Example 2: Create a Complete Form

"Create a login form with email and password validation"

Result:

<form onSubmit={handleSubmit}>
  <Input
    type="email"
    name="email"
    label="Email"
    required
    placeholder="Enter your email"
  />
  <Input
    type="password"
    name="password"
    label="Password"
    required
    minLength={8}
  />
  <Button type="submit" variant="primary">
    Login
  </Button>
</form>

Example 3: Configure Theme

"Set up a dark theme with blue primary color"

Result:

<ThemeProvider
  theme={{
    mode: "dark",
    colors: {
      primary: "#3b82f6",
      secondary: "#64748b"
    }
  }}
>
  {children}
</ThemeProvider>

📚 Alternative: Claude Desktop

While this server is optimized for Cursor, it also works with Claude Desktop:

macOS: ~/Library/Application Support/Claude/claude_desktop_config.json
Windows: %APPDATA%\Claude\claude_desktop_config.json

{
  "mcpServers": {
    "its-just-ui": {
      "command": "npx",
      "args": ["-y", "its-just-mcp"],
      "env": {}
    }
  }
}

Development

# Install dependencies
npm install

# Run in development mode
npm run dev

# Build for production
npm run build

# Run tests
npm test

Linting & Formatting

# ESLint
npm run lint

# Prettier
npm run format

Testing

# Jest
npm test

# Watch mode
npm run test:watch

# Coverage
npm run test:coverage

Project Structure

its-just-mcp/
├── src/
│   ├── index.ts              # Main server entry point
│   ├── components/
│   │   └── registry.ts       # Component definitions and metadata
│   └── tools/
│       ├── componentGenerator.ts  # Component generation logic
│       ├── themeManager.ts       # Theme configuration tools
│       ├── utilityTools.ts       # Utility and layout tools
│       └── documentationTools.ts # Documentation and accessibility
├── dist/                      # Compiled output
├── package.json
├── tsconfig.json
└── README.md

Contributing

Contributions are welcome! Please feel free to submit a Pull Request.

Recommended steps:

• Fork the repo and create a feature branch

• Add tests for new behavior

• Run lint and tests locally

• Open a PR with a clear description and examples

License

MIT

Support

For issues or questions, please open an issue on GitHub or contact the maintainers.

Related Links

• Cursor IDE - The AI-first code editor

• Cursor MCP Documentation

• its-just-ui Library

• its-just-ui on npm

• MCP SDK Documentation

Troubleshooting

Cursor-Specific Issues

Common Fixes

# Verify Node version (needs 18+)
node --version

# For local development, rebuild
cd /path/to/its-just-mcp
npm run build

# Check MCP config is valid JSON
cat .cursor/mcp.json | jq .

# Clear npm cache if npx fails
npm cache clean --force

Getting Help

• Check Cursor Console: View → Output → MCP

• Cursor MCP Docs: https://cursor-docs.apidog.io/model-context-protocol

• Open an issue: https://github.com/its-just-ui/its-just-mcp/issues