Composer Kit MCP Server

A Model Context Protocol (MCP) server for accessing Composer Kit UI components documentation, examples, and usage information. This server provides comprehensive access to the Composer Kit React component library designed for building web3 applications on the Celo blockchain.

Installation

1. Clone the repository:

git clone https://github.com/celo-org/composer-kit-mcp
cd composer-kit-mcp

2. Install dependencies:

pip install -e .

MCP Client Setup

Setting up in Cursor

1. Install the MCP server (if not already done):

   pip install composer-kit-mcp

2. Configure Cursor by adding the MCP server to your Cursor settings:

   • Open Cursor Settings (Cmd/Ctrl + ,)

   • Navigate to "Features" → "Model Context Protocol"

   • Add a new MCP server with the following configuration:

   {
     "mcpServers": {
       "composer-kit-mcp": {
         "command": "uvx",
         "args": ["composer-kit-mcp"]
       }
     }
   }

3. Restart Cursor to load the MCP server

4. Verify the setup by asking Cursor about Composer Kit components:

   • "What Composer Kit components are available?"

   • "Show me how to use the Wallet component"

   • "Search for payment-related components"

Setting up in Claude Desktop

1. Install the MCP server (if not already done):

   pip install composer-kit-mcp

2. Locate your Claude Desktop config file:

   • macOS: ~/Library/Application Support/Claude/claude_desktop_config.json

   • Windows: %APPDATA%\Claude\claude_desktop_config.json

3. Edit the config file to add the MCP server:

   {
     "mcpServers": {
       "composer-kit-mcp": {
         "command": "uvx",
         "args": ["composer-kit-mcp"]
       }
     }
   }

   If the file doesn't exist, create it with the above content.

4. Restart Claude Desktop to load the MCP server

5. Verify the setup by asking Claude about Composer Kit:

   • Look for the 🔌 icon in the chat interface indicating MCP tools are available

   • Ask: "What Composer Kit components can you help me with?"

   • Try: "Show me examples of using the Payment component"

Alternative Installation Methods

Using pipx (Recommended for isolation)

# Install pipx if you haven't already
pip install pipx

# Install composer-kit-mcp in an isolated environment
pipx install composer-kit-mcp

# The command will be available globally
composer-kit-mcp

Using virtual environment

# Create a virtual environment
python -m venv composer-kit-mcp-env
source composer-kit-mcp-env/bin/activate  # On Windows: composer-kit-mcp-env\Scripts\activate

# Install the package
pip install composer-kit-mcp

# Use the full path in your MCP config
# e.g., /path/to/composer-kit-mcp-env/bin/composer-kit-mcp

Troubleshooting

Common Issues

1. Command not found: Make sure the package is installed and the command is in your PATH

   which composer-kit-mcp  # Should show the path to the command

2. Permission errors: Try installing with --user flag or use pipx

   pip install --user composer-kit-mcp

3. MCP server not connecting: Check that the command path in your config is correct

   composer-kit-mcp  # Should start the server (will wait for input)

4. Python version issues: Ensure you're using Python 3.11 or higher

   python --version  # Should be 3.11+

Debugging

To test if the MCP server is working correctly:

# Test the server directly
echo '{"jsonrpc": "2.0", "id": 1, "method": "tools/list", "params": {}}' | composer-kit-mcp

This should return a JSON response with the available tools.

Usage

Running the Server

# Run the MCP server
python -m composer_kit_mcp.server

# Or use the CLI entry point
composer-kit-mcp

Available Tools

Component Information

1. list_components

   • List all available Composer Kit components with their descriptions and categories

   • No parameters required

2. get_component

   • Get detailed information about a specific component, including source code, props, and usage information

   • Parameters: component_name (e.g., 'button', 'wallet', 'payment', 'swap')

3. get_component_example

   • Get example usage code for a specific component with real-world examples

   • Parameters: component_name, example_type (optional: 'basic', 'advanced', 'with-props')

4. search_components

   • Search for components by name, description, or functionality

   • Parameters: query (e.g., 'wallet', 'payment', 'token', 'nft')

5. get_component_props

   • Get detailed prop information for a specific component, including types, descriptions, and requirements

   • Parameters: component_name

Installation and Setup

6. get_installation_guide

   • Get installation instructions for Composer Kit, including setup steps and configuration

   • Parameters: package_manager (optional: 'npm', 'yarn', 'pnpm', 'bun')

7. get_components_by_category

   • Get all components in a specific category

   • Parameters: category (e.g., 'Core Components', 'Wallet Integration', 'Payment & Transactions')

Celo Composer Tools

8. list_celo_composer_templates

   • List all available Celo Composer templates with their descriptions, use cases, and features

   • No parameters required

9. get_celo_composer_template

   • Get detailed information about a specific Celo Composer template

   • Parameters: template_name

10. list_celo_composer_frameworks

    • List supported frameworks in Celo Composer (React/Next.js, Hardhat)

    • No parameters required

11. get_celo_composer_commands

    • Get available Celo Composer CLI commands with flags and usage examples

    • No parameters required

12. get_celo_composer_guide

    • Get step-by-step guides for various Celo Composer tasks

    • Parameters: guide_type ('quick-start', 'smart-contract-deployment', 'local-development', 'ui-components', 'deployment')

13. get_integration_guide

    • Get a comprehensive guide on integrating Composer Kit with Celo Composer projects

    • No parameters required

14. create_celo_composer_project

    • Generate the complete command to create a new Celo Composer project

    • Parameters: project_name, owner, template, include_hardhat (optional, defaults to true)

    • Returns: Complete CLI command with next steps and template information

Available Components

Core Components

• Address: Display Ethereum addresses with truncation and copy functionality

• Balance: Display and manage token balances with precision control

• Identity: Display user information with address, name, balance, and social links

Wallet Integration

• Wallet: Wallet connection and user information display

• Connect: Wallet connection button with callback support

Payment & Transactions

• Payment: Send payments with built-in dialog and error handling

• Transaction: Facilitate blockchain transactions with status tracking

• Swap: Token exchange interface with swappable token selection

Token Management

• TokenSelect: Search and select tokens from a list with filtering

NFT Components

• NFT: Display NFT details and provide minting interface

• NFTCard: Card layout for NFT display

• NFTImage: NFT image display component

• NFTMeta: NFT metadata display

• NFTMint: NFT minting interface

Key Features

Component Documentation

• Complete API Reference: Detailed prop information for all components

• Usage Examples: Real-world code examples for each component

• Installation Guides: Step-by-step setup instructions

• Category Organization: Components organized by functionality

Celo Composer Integration

• Template Management: Access to all Celo Composer templates

• Project Creation: Generate complete CLI commands for new projects

• Framework Support: Information about React/Next.js and Hardhat integration

• Step-by-Step Guides: Comprehensive guides for project setup, deployment, and development

• Integration Documentation: How to combine Composer Kit components with Celo Composer projects

Search and Discovery

• Semantic Search: Find components by functionality or use case

• Category Filtering: Browse components by category

• Prop Documentation: Detailed type information and requirements

Code Examples

• Basic Usage: Simple implementation examples

• Advanced Patterns: Complex usage scenarios

• Best Practices: Recommended implementation patterns

Celo Composer Templates

Minipay Template

• Purpose: Pre-configured for building mini-payment dApps on Celo

• Use Cases: Mobile-first payment applications, micro-transactions, P2P payments

• Features: Mobile-optimized UI, payment flow components, Celo integration, PWA support

Valora Template

• Purpose: Designed for easy Valora wallet integration

• Use Cases: Valora wallet integration, social payments, DeFi applications

• Features: Valora wallet connectivity, social features, DeFi components, multi-token support

Integration Workflow

1. Choose a Template: Select from Minipay or Valora based on your use case

2. Create Project: Use the create_celo_composer_project tool to generate the setup command

3. Install Dependencies: Set up the project with the generated command

4. Add Composer Kit: Install Composer Kit components for enhanced UI

5. Develop: Use step-by-step guides for deployment and development setup

Architecture

The server provides access to hardcoded Composer Kit component data and Celo Composer information:

src/composer_kit_mcp/
├── components/         # Component data and models
│   ├── data.py        # Hardcoded component and Celo Composer information
│   └── models.py      # Pydantic models for components and Celo Composer
├── server.py          # Main MCP server with Composer Kit and Celo Composer tools
└── __init__.py        # Package initialization

Data Structure

• Composer Kit Components: Complete component library with props, examples, and usage information

• Celo Composer Templates: Template configurations with use cases and features

• Celo Composer Guides: Step-by-step instructions for common tasks

• Integration Documentation: How to combine both tools for rapid dApp development

Component Categories

Core Components

Essential UI components for basic functionality

Wallet Integration

Components for wallet connection and user management

Payment & Transactions

Components for handling payments and blockchain transactions

Token Management

Components for token selection and management

NFT Components

Components for NFT display and interaction

Development

Running Tests

pytest

Code Formatting

black .
ruff check .

Type Checking

mypy .

License

MIT License - see LICENSE file for details.

Contributing

1. Fork the repository

2. Create a feature branch

3. Make your changes

4. Add tests if applicable

5. Submit a pull request

Support

For issues and questions:

• GitHub Issues: composer-kit-mcp/issues

• Documentation: Composer Kit Docs