webpagetest/webpagetest-api

WebPageTest API Wrapper for NodeJS is a lightweight npm package that provides a convenient JavaScript (and CLI) client for interacting with the WebPageTest REST API—enabling developers to programmatically trigger page loads, retrieve test metadata, and download results such as HAR files, waterfall charts, screenshots, and videos. It’s aimed at engineers who need to incorporate WebPageTest’s performance‑testing capabilities into modern JavaScript/Node.js applications, CI pipelines, or automation scripts.