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.

ReadyAPI is a low-code API testing platform for development teams that care about creating test automation across any workflow.

Unifying API testing, API Performance testing, API Mocks and UI testing.

Jest is a delightful JavaScript Testing Framework with a focus on simplicity.

Monitor network requests and API failures with real-time insights

Requestly is an open-source tool that simplifies API development, testing, mocking, and integration for developers and QAs.