mcp expert server

A Model Context Protocol server that provides intelligent query generation and documentation assistance using Claude AI. The server analyzes your API documentation and provides two main tools:

• create-query: Generates queries based on natural language requests
• documentation: Provides relevant documentation information based on questions

Prerequisites

• Node.js >= 18
• An Anthropic API key for Claude

Installation

1. Clone the repository
2. Install dependencies:

   npm install

3. Create a .env file with your Anthropic API key:

   ANTHROPIC_API_KEY=your_api_key_here

Setup

Before running the server, you need to:

1. Build the project and run the setup script:

   npm run build
   npm run setup

This will: - Create the required directories (docs/ and prompts/) - Create default prompt files - Generate an initial service description

1. Add your API documentation files to the docs/ directory (supports .txt, .md, and .json files)

2. Optionally customize the prompts in the prompts/ directory:

3. system-prompt.txt: Main system prompt for Claude
4. tool-metadata.txt: Additional context for tool descriptions
5. query-metadata.txt: Additional context for query generation
6. service-description.txt: Auto-generated service description

Usage

Standalone Server

Start the server:

npm start

The server exposes two tools via the Model Context Protocol:

• create-query: Generate a query based on natural language request

  {
    "name": "create-query",
    "arguments": {
      "request": "Find all users who signed up in the last week"
    }
  }

• documentation: Get information from the documentation

  {
    "name": "documentation",
    "arguments": {
      "request": "How do I authenticate API requests?"
    }
  }

Claude Desktop Integration

1. Add this configuration to your Claude Desktop config file:

   {
     "mcpServers": {
       "expert": {
         "command": "node",
         "args": ["/ABSOLUTE/PATH/TO/expert-server/build/index.js"],
         "env": {
           "ANTHROPIC_API_KEY": "your_api_key_here"
         }
       }
     }
   }

2. Replace /ABSOLUTE/PATH/TO/expert-server with the actual absolute path to your server installation.

3. Restart Claude Desktop.

Directory Structure

.
├── docs/                  # Your API documentation files
├── prompts/              # System prompts and metadata
│   ├── system-prompt.txt    # Main system prompt
│   ├── tool-metadata.txt    # Tool description context
│   ├── query-metadata.txt   # Query generation context
│   └── service-description.txt  # Generated service description
├── src/                  # Source code
│   ├── index.ts            # Entry point
│   ├── server.ts           # MCP server implementation
│   └── services/           # Core services
│       └── expertService.ts  # Claude integration
└── package.json

Development

• Build the project:

  npm run build

• The server uses TypeScript and follows a modular architecture

• All Claude interactions are handled by the ExpertService class
• Debug logs are written to stderr with [DEBUG] prefix

Troubleshooting

If you encounter connection issues:

1. Ensure you've run the setup script:

   npm run setup

2. Check that all required files exist in the prompts/ directory

3. Verify your ANTHROPIC_API_KEY is correctly set
4. Use absolute paths in your Claude Desktop config
5. Check the debug logs (written to stderr)

Environment Variables

• ANTHROPIC_API_KEY: Your Anthropic API key (required)

License

MIT