BuiltWith MCP

How to Install and Use BuiltWith MCP

BuiltWith MCP is a useful tool that helps you find out what technologies a website is using. It connects to the BuiltWith API and gives you detailed information about frameworks, analytics tools, hosting services, and more. Below is a simple guide to get you started with installing and using BuiltWith MCP.

Step 1: Clone the BuiltWith MCP Repository

The first step is to get the BuiltWith MCP code on your computer. You can do this by cloning the GitHub repository using the following command:

git clone https://github.com/builtwith/mcp.git

After the cloning is done, move into the new directory:

cd mcp

This puts you in the right place to work with the BuiltWith MCP files.

Step 2: Install the Dependencies

Before you can use BuiltWith MCP, you need to install its dependencies. These are extra pieces of software it needs to work. Run this command inside the mcp folder:

npm install

This command downloads and installs everything the tool needs.

Step 3: Configure the API Key

BuiltWith MCP needs an API key from BuiltWith to access their technology database. You have to set this up before running the server.

Create a configuration with your API key like this (replace [YOUR-API-KEY] with your actual key):

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

Make sure to replace [PATH-TO] with the correct folder path where bw-mcp-v1.js is located. This tells the server where to find the main script and what API key to use.

Step 4: Save Configuration in the Correct Location

Depending on your setup, save the above configuration file in one of these places:

• For Claude Desktop on macOS:
  ~/Library/Application Support/Claude/claude_desktop_config.json

• For Claude Desktop on Windows:
  %APPDATA%\Claude\claude_desktop_config.json

• For VS Code with Claude Dev on macOS:
  ~/Library/Application Support/Code/User/globalStorage/saoudrizwan.claude-dev/settings/cline_mcp_settings.json

• For VS Code with Claude Dev on Windows:
  %APPDATA%\Code\User\globalStorage\saoudrizwan.claude-dev\settings\cline_mcp_settings.json

This step links the BuiltWith MCP server with your AI assistant.

Step 5: Start Using BuiltWith MCP with Your AI Assistant

Now you are ready to ask about website technologies using any MCP-compatible AI assistant. Here are some example questions you can try:

• "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."

The AI assistant will connect to the BuiltWith MCP server, fetch the tech data, and give you clear answers.

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By following these steps, you can quickly install and start using BuiltWith MCP to learn about the technology behind any website. It’s a powerful way to get detailed tech insights right from natural language questions.