You set up and run the Perplexity MCP Server to get intelligent code analysis and debugging powered by Perplexity AI. It integrates with your MCP client to analyze errors, detect common patterns, and provide actionable fixes, with special support for Python errors.

How to use

Connect your MCP client to the Perplexity MCP Server to start analyzing code and debugging issues. You can ask questions like “Fix this TypeError in my Python code” or “What’s causing this error message?” and include your code snippet for targeted analysis. The server will return a root cause analysis, a step-by-step solution with code examples, best practices to prevent similar issues, and alternative implementation approaches.

How to install

Prerequisites you need before installing the server are Node.js 18 or higher and 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 to load the MCP server. You can either run it via a prebuilt binary or run directly from source.

Additional configuration and runtime details

Two common ways to run the MCP server from Claude Desktop are shown below. The first uses a prebuilt command, and the second shows running from source with a full path to the built entry point.

Configuration examples

If you have installed the server via the prebuilt package, add the following to Claude's desktop configuration under mcpServers. This runs the server as a local process and passes your API key securely.

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

Running from source

If you built from source, configure Claude Desktop to start the server by running Node against the built entry point.

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

Available tools

intelligent_error_analysis

Performs a detailed root-cause analysis of coding errors, explaining why the error occurs and how to fix it.

pattern_detection

Recognizes common error patterns and suggests targeted solutions based on detected patterns.

step_by_step_solutions

Provides comprehensive, actionable fixes with step-by-step instructions and multiple implementation options.

best_practices

Offers coding standards and error prevention tips to minimize similar issues in the future.

python_type_error_handling

Specialized handling for Python type errors and common Python coding issues.