MCP Server with Brave Search and Anthropic Claude

This project is a Model Context Protocol (MCP) server that uses Brave Search for web search and Anthropic Claude for analysis and response generation.

Features

• 🔍 Web search via Brave Search API
• 🤖 Analysis and response generation with Claude 3 Sonnet
• 🌐 MCP-compliant server implementation
• 💬 Support for search and chat capabilities

Prerequisites

• Node.js (version 14 or higher)
• Brave Search API key
• Anthropic API key

Installation

1. Clone the repository:

git clone <your-repo>
cd mcp-server-brave-test

2. Install dependencies:

npm install

3. Create a .env file in the root directory with your API keys:

ANTHROPIC_API_KEY=your_anthropic_api_key
BRAVE_SEARCH_API_KEY=your_brave_search_api_key
PORT=3000  # Optional, defaults to 3000

Usage

Starting the Server

To start the MCP server:

# First, build the project
npm run build

# Then start the server
npm start

The server will be available at http://localhost:3000

Using the Client

To use the MCP client:

# Make sure the server is running first
# Then in a new terminal, run:
npm run client

The client will automatically connect to the running server and start an interactive session.

MCP Endpoints

The server implements the following MCP capabilities:

Search Capability

POST /search
Content-Type: application/json

{
  "query": "your search query"
}

Response:

{
  "results": [
    {
      "title": "Result title",
      "url": "https://example.com",
      "description": "Result description"
    }
  ]
}

Chat Capability

POST /chat
Content-Type: application/json

{
  "message": "your question",
  "context": {
    "searchResults": [
      {
        "title": "Result title",
        "url": "https://example.com",
        "description": "Result description"
      }
    ]
  }
}

Response:

{
  "response": "Claude's response based on the search results"
}

Development

• Build the project:

npm run build

• Start in development mode (with auto-reload):

npm run dev

Project Structure

mcp-server-brave-test/
├── src/
│   ├── mcpServer.ts  # MCP server implementation
│   └── mcpClient.ts  # MCP client implementation
├── dist/
│   ├── mcpServer.js  # Compiled server
│   └── mcpClient.js  # Compiled client
├── .env             # Environment variables
├── package.json
└── tsconfig.json

License

ISC

Contributing

Contributions are welcome! Feel free to:

1. Fork the project
2. Create a feature branch
3. Commit your changes
4. Push to the branch
5. Open a Pull Request