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

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.

A test framework for testing bash scripts

Mockoon is the easiest and quickest way to design and run mock REST APIs.

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

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