Model Context Protocol server for BuiltWith API integration
Builtwith mcp server connects Builtwith to AI assistants that speak the Model Context Protocol. Model Context Protocol server for BuiltWith API integration.
A Model Context Protocol (MCP) server that provides tools for querying the BuiltWith API to get information about website technology stacks. This server can be used with any AI assistant that supports the Model Context Protocol.
Once connected, the assistant can call these 2 tools directly:
Troubleshooting — 2. If not available, the package.json is configured to use the GitHub repository. If this fails, you may need to:domain_lookup — The domain_lookup tool exposed by this serverThe server is distributed via npm as npm, so most clients can run it without a manual build step. Add it to your MCP client's configuration and restart the client to pick it up — the copy-paste configs for Claude Desktop, Claude Code and Cursor are on this page.
Before the server will start you need to supply one environment variable: BUILTWITH_API_KEY. Keep credentials in your client's env block or a secrets manager rather than committing them.
Developer-tool servers are usually the first ones people connect, because they turn "help me with this code" into an assistant that can actually read the repo and act on it. Builtwith sits in that group, and the shape of its toolset — Troubleshooting, domain_lookup — tells you what it is really for. Worth comparing against the other developer tools servers in this directory before you commit to one, since several overlap in scope but differ sharply in setup cost and permissions.
| Tool | What it does |
|---|---|
| Troubleshooting | 2. If not available, the package.json is configured to use the GitHub repository. If this fails, you may need to: |
| domain_lookup | The domain_lookup tool exposed by this server. |
For Claude Developer Tools:
```json
// ~/Library/Application Support/Code/User/globalStorage/saoudrizwan.claude-dev/settings/cline_mcp_settings.json (macOS)
// %APPDATA%\Code\User\globalStorage\saoudrizwan.claude-dev\settings\cline_mcp_settings.json (Windows)
{
"mcpServers": {
"builtwith": {
"command": "node",
"args": ["/path/to/builtwith-mcp-server/build/index.js"],
"env": {
"BUILTWITH_API_KEY": "your-api-key-here"
},
"disabled": false,
"autoApprove": []
}
}
}Configuration as documented by the project. Restart the client after saving.
| Variable | Description | Required |
|---|---|---|
| BUILTWITH_API_KEY | Credential the server authenticates with. | Yes |
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