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

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

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

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

HyperTest is a no-code test automation tool that regresses all your APIs by auto-generating integration tests using your network traffic, also giving a way to reproduce these failures inside actual user-journeys.

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