Perplexity MCP Server

A Model Context Protocol (MCP) server that provides intelligent code analysis and debugging capabilities using Perplexity AI’s API. Works seamlessly with the Claude desktop client.

Features

• Intelligent Error Analysis: Detailed breakdown of coding errors with root cause analysis
• Pattern Detection: Automatically recognizes common error patterns and provides targeted solutions
• Comprehensive Solutions: Step-by-step fixes with multiple implementation alternatives
• Best Practices: Includes coding standards and error prevention tips
• Python Support: Specialized handling of Python type errors and common coding issues

Example Usage

Ask questions like:

• “Fix this TypeError in my Python code”
• “What’s causing this error message?”
• “How do I fix this code?”

Include your code snippet for targeted analysis:

def calculate_total(items):
    total = 0
    for item in items:
        total = total + item['price']  # TypeError: string + int

data = [
    {'name': 'Book', 'price': '10'},
    {'name': 'Pen', 'price': '2'}
]

result = calculate_total(data)

The server will provide:

1. Root cause analysis of the error
2. Step-by-step solution with code examples
3. Best practices to prevent similar issues
4. Alternative implementation approaches

Installation

Prerequisites

• Node.js 18 or higher
• A Perplexity AI API key

Option 1: Install from npm (Recommended)

# Using npm
npm install -g perplexity-mcp

# Or using the repository directly
npm install -g git+https://github.com/yourusername/perplexity-mcp.git

Option 2: Install from Source

1. Clone the repository:

git clone https://github.com/yourusername/perplexity-server.git
cd perplexity-server

2. Install dependencies:

npm install

3. Build and install globally:

npm run build
npm install -g .

Configure Claude Desktop

Add to your Claude desktop configuration file:

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

{
  "mcpServers": {
    "perplexity": {
      "command": "perplexity-mcp",
      "args": [],
      "env": {
        "PERPLEXITY_API_KEY": "your-api-key-here"
      }
    }
  }
}

Or if installed from source:

{
  "mcpServers": {
    "perplexity": {
      "command": "node",
      "args": ["/absolute/path/to/perplexity-server/build/index.js"],
      "env": {
        "PERPLEXITY_API_KEY": "your-api-key-here"
      }
    }
  }
}

Security

• The API key is stored securely in Claude’s desktop configuration file
• The key is passed to the server as an environment variable
• No sensitive data is stored in the repository
• The server expects the API key to be provided by Claude’s environment

Development

Project Structure

perplexity-server/
├── src/
│   └── index.ts      # Main server implementation
├── package.json      # Project configuration
└── tsconfig.json    # TypeScript configuration

Available Scripts

• npm run build: Build the project
• npm run watch: Watch for changes and rebuild automatically
• npm run prepare: Prepare the package for publishing
• npm run inspector: Run the MCP inspector for debugging

Contributing

1. Fork the repository
2. Create your feature branch (git checkout -b feature/amazing-feature)
3. Commit your changes (git commit -m 'Add some amazing feature')
4. Push to the branch (git push origin feature/amazing-feature)
5. Open a Pull Request

License

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

Acknowledgments

• Thanks to Perplexity AI for their powerful API
• Built with Model Context Protocol