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.

API Testing Platform that automatically generates unit test cases with dependency mocks from API calls

Comprehensive and user-friendly cloud platform for Load Testing, Speed Testing and Website & API Optimization and Monitoring

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

Test, scrape, generate, and automate without the pain and expense of hosting your own headless browsers.

Postman is an API platform for building and using APIs. Postman simplifies each step of the API lifecycle and streamlines collaboration so you can create better APIs—faster.