BuiltWith MCP Server

What is BuiltWith MCP Server about?

Provides a Model Context Protocol (MCP) server that bridges AI assistants with BuiltWith’s technology detection API, allowing natural‑language queries about a site’s frameworks, analytics tools, hosting providers, and more.

How to use BuiltWith MCP Server?

1. Clone & install

   git clone https://github.com/builtwith/mcp.git
   cd mcp
   npm install
   

2. Configure API key – add your BuiltWith API key to the environment variable BUILTWITH_API_KEY in the MCP configuration JSON (example paths for Claude Desktop and VS Code are documented).
3. Run the server – start the server with Node (or integrate it via the MCP configuration of your AI assistant).
4. Ask questions – use any MCP‑compatible assistant to query site technology, e.g., “What CMS does nytimes.com run on?”

Key Features of BuiltWith MCP Server

• Domain lookup for comprehensive technology profiles
• Simple JSON‑based configuration with environment‑variable API key
• Works with any MCP‑compatible AI assistant (Claude Desktop, VS Code extensions, etc.)
• Supports comparative queries across multiple domains

Use Cases of BuiltWith MCP Server

• Competitive analysis – compare tech stacks of rival websites.
• Market research – gather statistics on technology adoption across industries.
• Developer assistance – quickly discover frameworks or libraries used by a target site.
• Automation – integrate into workflows that need tech‑stack validation before deployment.

FAQ from the BuiltWith MCP Server

Q: Do I need a BuiltWith account? A: Yes, an API key from BuiltWith is required; obtain it from the BuiltWith developer portal.

Q: Which programming languages can I use with this server? A: The server itself runs on Node.js, but any MCP‑compatible AI tool (regardless of language) can communicate with it.

Q: How is the API key secured? A: It is injected via an environment variable (BUILTWITH_API_KEY) and not hard‑coded in the source.

Q: Can I run the server locally? A: Absolutely – after npm install you can start it on your machine and point your AI assistant to the local endpoint.

Q: Is there a limit on the number of domain queries? A: Limits are governed by your BuiltWith subscription plan, not by this MCP server.

🔍 BuiltWith MCP Server 🚀

🌟 Overview

A Model Context Protocol (MCP) server that integrates with BuiltWith's technology detection API. This server allows AI assistants to identify the technology stack behind any website, providing detailed information about frameworks, analytics tools, hosting services, and more - all through natural language commands.

🛠️ Features

• 🌐 Domain Lookup: Get comprehensive technology profiles for any website

📦 Installation

# Clone the repository
git clone https://github.com/builtwith/mcp.git

# Navigate to directory
cd mcp

# Install dependencies
npm install

⚙️ Configuration

The BuiltWith MCP Server requires an API key from BuiltWith. Configure the server with your API key as follows:

{
    "mcpServers": {
        "builtwith": {
            "command": "node",
            "args": ["[PATH-TO]/bw-mcp-v1.js"],
            "env": {
                "BUILTWITH_API_KEY": "[YOUR-API-KEY]"
            }
        }
    }
}

Configuration Locations

• Claude Desktop: ~/Library/Application Support/Claude/claude_desktop_config.json (macOS) or %APPDATA%\Claude\claude_desktop_config.json (Windows)
• VS Code (Cursor/Claude Dev): ~/Library/Application Support/Code/User/globalStorage/saoudrizwan.claude-dev/settings/cline_mcp_settings.json (macOS) or %APPDATA%\Code\User\globalStorage\saoudrizwan.claude-dev\settings\cline_mcp_settings.json (Windows)

🚀 Usage

Once configured, you can use the BuiltWith MCP Server with any MCP-compatible AI assistant. Here are some examples of what you can ask:

• "What technologies is example.com using?"
• "What CMS does nytimes.com run on?"
• "Does amazon.com use Google Analytics?"
• "What JavaScript frameworks are used by spotify.com?"
• "What hosting provider does netflix.com use?"
• "Compare the technology stacks of facebook.com and twitter.com"

🧩 How It Works

The BuiltWith MCP Server acts as a bridge between AI assistants and the BuiltWith API:

1. 🗣️ The AI assistant receives a user query about website technologies
2. 🔌 The assistant connects to the BuiltWith MCP Server
3. 🔍 The server makes appropriate API calls to BuiltWith
4. 📊 Technology data is retrieved and formatted
5. 💬 The AI assistant provides human-friendly insights based on the data

📖 API Documentation

For more information about the BuiltWith API, visit:

• BuiltWith API Documentation
• BuiltWith Domain API

📄 License

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

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