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

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

Swagger UI allows anyone — be it your development team or your end consumers — to visualize and interact with the API’s resources without having any of the implementation logic in place

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.

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

Monitor network requests and API failures with real-time insights