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MCP Server Starter Template

by revskill10
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JavaScript
Hybrid

MCP Server Starter Template

A comprehensive starter template for building Model Context Protocol (MCP) servers, specifically designed for UI libraries and component registries. This template provides a robust foundation for creating MCP servers that can fetch, categorize, and provide component information to AI assistants like Claude.

🌎 Real world example?

Check out the stackzero-labs/mcp which uses this template to expose its UI components and blocks to AI models. You can also checkout the UI referenced project stackzero/ui

🚀 Features

  • Ready-to-use MCP server with TypeScript support

  • Component registry integration for UI libraries

  • Categorized component organization with flexible category system

  • Zod schema validation for type safety

  • Development tools including hot reload and inspector

  • Example implementation using a real project URL for demonstration

  • Extensible architecture for custom component types and categories

📋 Prerequisites

  • Node.js 18 or higher

  • pnpm (recommended) or npm

  • Basic understanding of TypeScript and MCP

🤝 Intended Use Cases

This template is specifically designed for libraries following the registry format (like shadcn/ui), making it ideal for:

  • UI component libraries

  • Design systems

  • Component registries that need to be accessible via AI assistants

  • Tools, utilities, and frameworks that require a structured way to expose UI components to AI models

Read more about components registries like shadcn/ui here Component Registries.

With some customizations however, it can be adapted for other types of MCP servers as well.

🛠️ Installation

  1. Clone or download this template:

git clone https://github.com/mnove/mcp-starter.git cd mcp-starter

  1. Install dependencies:

pnpm install

  1. Build the project:

pnpm run build

⚙️ Configuration

1. Update Project Configuration

Edit src/lib/config.ts to point to your own component registry:

export const mcpConfig = { projectName: "your-project-name", // Replace with your actual project URL baseUrl: "https://your-ui-library.com", registryUrl: "https://your-ui-library.com/r", registryFileUrl: "https://your-ui-library.com/registry.json", };

Note: This template currently uses https://ui.stackzero.co as a demonstration URL. You must replace this with your actual project URL for production use.

2. Define Component Categories

Customize src/lib/categories.ts to match your component structure:

export const componentCategories = { Buttons: ["button-primary", "button-secondary", "button-ghost"], Forms: ["input-text", "input-email", "textarea"], // Add your categories here };

3. Update Server Metadata

Modify src/server.ts to customize your server information:

const server = new McpServer({ name: "your-mcp-server-name", version: "1.0.0", });

🏃‍♂️ Development

Start Development Server

pnpm run dev

Build for Production

pnpm run build

Inspect MCP Server

pnpm run inspect

This opens the MCP Inspector to test your server tools interactively.

📚 Available Tools

The MCP server provides the following tools:

getUIComponents

Returns a comprehensive list of all UI components from your registry.

Category-specific Tools

Dynamic tools are created for each category defined in componentCategories:

  • getButtons - Get all button components

  • getForms - Get all form components

  • etc.

Each category tool provides:

  • Component implementation details

  • Usage examples

  • Installation instructions

  • Related components

🏗️ Project Structure

mcp-starter/ ├── src/ │ ├── server.ts # Main MCP server implementation │ ├── lib/ │ │ ├── config.ts # Configuration settings │ │ └── categories.ts # Component categories │ └── utils/ │ ├── api.ts # API fetching utilities │ ├── formatters.ts # Data formatting helpers │ ├── schemas.ts # Zod validation schemas │ └── index.ts # Utility exports ├── dist/ # Built files ├── package.json └── README.md

🔧 Customization

Adding New Component Types

  1. Update schemas in src/utils/schemas.ts:

export const CustomComponentSchema = z.object({ name: z.string(), category: z.string(), // Add your fields });

  1. Add API functions in src/utils/api.ts:

export async function fetchCustomComponents() { // Your implementation }

  1. Register new tools in src/server.ts:

server.tool("getCustomComponents" /*...*/);

Extending Categories

Simply add new categories to src/lib/categories.ts:

export const componentCategories = { // Existing categories... Navigation: ["navbar", "sidebar", "breadcrumbs"], DataDisplay: ["table", "card", "badge"], };

The server will automatically create tools for new categories.

Why categories?

Categories help organize components logically, making it easier for AI assistants to find and suggest relevant components based. Also, some models and IDE have a limit on the number of tools they can handle, so categorizing helps to keep the number of tools manageable.

📖 Registry Format

Your component registry should follow this structure:

Registry File (registry.json)

{ "registry": [ { "name": "button-primary", "type": "registry:component", "description": "Primary button component" } ] }

Component Details (/r/{component-name}.json)

{ "name": "button-primary", "type": "registry:component", "files": [ { "content": "// Component implementation" } ] }

🚀 Deployment

As a Local MCP Server

  1. Build the project:

pnpm run build

  1. Configure in your MCP client (e.g., Claude Desktop):

{ "mcpServers": { "your-mcp-server": { "command": "node", "args": ["/path/to/mcp-starter/dist/server.js"] } } }

As an NPM Package

You can also publish this template as an NPM package for easy installation in other projects.

  1. Update package.json with your details

  2. Build and publish:

pnpm run build npm publish

🤝 Contributing

See CONTRIBUTING.md for details on how to contribute to this project.

📄 License

This project is licensed under the MIT License - see the LICENSE file for details.

🤝 Contact

Marcello - @mnove

🙏 Acknowledgments

  • Built with Model Context Protocol SDK

  • Inspired by the need for better AI-component integration

  • Thanks to the MCP community for their contributions

⚠️ Important: Remember to replace https://ui.stackzero.co with your actual project URL before using this template in production!

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