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Code Explainer MCP

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A Cloudflare Worker that serves as an MCP (Model Context Protocol) server for code explanation. It analyzes and explains code with a comprehensive breakdown of structure and functionality.

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Overview

Code Explainer MCP is a Cloudflare Worker that serves as a Model Context Protocol (MCP) server for code explanation, providing a comprehensive breakdown of code structure and functionality.

To use Code Explainer MCP, send a POST request to the worker URL with your code and the programming language specified in the JSON body, along with the Authorization header containing your secret key.

  • Generates ASCII architecture diagrams showing code structure and relationships. - Analyzes core functionality and explains the primary purpose of the code. - Breaks down components, listing main classes and functions with descriptions. - Supports multiple programming languages including JavaScript, Python, and more. - Utilizes existing documentation comments for better explanations. - Secured API with Bearer token authentication.
  1. Analyzing and explaining complex codebases.
  2. Visualizing code architecture for better understanding.
  3. Assisting developers in learning new programming languages.

Add to your AI client

Use these steps to connect Code Explainer MCP in Cursor, Claude, VS Code, and other MCP-compatible apps. The same JSON appears in the Use with menu above for one-click copy.

Cursor

Add this to your .cursor/mcp.json file in your project root, then restart Cursor.

.cursor/mcp.json

{
  "mcpServers": {
    "code-explainer-mcp-billduke13": {
      "command": "npx",
      "args": [
        "-y",
        "@modelcontextprotocol/server-code-explainer-mcp-billduke13"
      ]
    }
  }
}

Claude Desktop

Add this server entry to the mcpServers object in your Claude Desktop config, then restart the app.

~/Library/Application Support/Claude/claude_desktop_config.json (macOS) or %APPDATA%\Claude\claude_desktop_config.json (Windows)

{
  "mcpServers": {
    "code-explainer-mcp-billduke13": {
      "command": "npx",
      "args": [
        "-y",
        "@modelcontextprotocol/server-code-explainer-mcp-billduke13"
      ]
    }
  }
}

Claude Code

Add this to your project's .mcp.json file. Claude Code will detect it automatically.

.mcp.json (project root)

{
  "mcpServers": {
    "code-explainer-mcp-billduke13": {
      "command": "npx",
      "args": [
        "-y",
        "@modelcontextprotocol/server-code-explainer-mcp-billduke13"
      ]
    }
  }
}

VS Code (Copilot)

Add this to your .vscode/mcp.json file. Requires the GitHub Copilot extension with MCP support enabled.

.vscode/mcp.json

{
  "servers": {
    "code-explainer-mcp-billduke13": {
      "type": "stdio",
      "command": "npx",
      "args": [
        "-y",
        "@modelcontextprotocol/server-code-explainer-mcp-billduke13"
      ]
    }
  }
}

Windsurf

Add this to your Windsurf MCP config file, then restart Windsurf.

~/.codeium/windsurf/mcp_config.json

{
  "mcpServers": {
    "code-explainer-mcp-billduke13": {
      "command": "npx",
      "args": [
        "-y",
        "@modelcontextprotocol/server-code-explainer-mcp-billduke13"
      ]
    }
  }
}

Cline

Open Cline settings, navigate to MCP Servers, and add this server configuration.

Cline MCP Settings (via UI)

{
  "mcpServers": {
    "code-explainer-mcp-billduke13": {
      "command": "npx",
      "args": [
        "-y",
        "@modelcontextprotocol/server-code-explainer-mcp-billduke13"
      ]
    }
  }
}

FAQ

Can Code Explainer MCP analyze any programming language?

Yes! It supports various languages including JavaScript, TypeScript, Python, Java, and C#.

Is there a cost to use Code Explainer MCP?

The service is free to use, but you need a Cloudflare account to deploy it.

How secure is the API?

The API is secured with Bearer token authentication, and it is recommended to use environment secrets for production.

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