Vigil is an open-source Status Page you can host on your infrastructure, used to monitor all your servers and apps, and visible to your users.

RapidAPI for Mac is a full-featured HTTP client that lets you test and describe the APIs you build or consume. It has a beautiful native macOS interface to compose requests, inspect server responses, generate client code and export API definitions.

Percy is a visual testing and monitoring tool that focuses on detecting visual changes in web applications

Free & OpenSource REST API Testing Tool for all levels in a Test Pyramid

Playwright enables reliable end-to-end testing for modern web apps.

Design, debug, and test APIs locally or in the cloud