Hello,
There are many amazing best framework for API Automated Testing but i will recommend the following one.
Katalon Studio is a free test automation tool for API, Web, Desktop App and Mobile applications. It is emerging as a leading tool for API/Web services testing and positioning itself as a comprehensive end-to-end automation solution for both developers and testers.
Feature highlights:
- Support both SOAP and Rest
- All-in-one shop for API, WebUI, Desktop App and Mobile testing and the combined capabilities among those.
- Support data-driven approach.
- Can be used for automated and exploratory testing
- Support CI/CD integration.
- Support AssertJ, one of the most potent assertion library, to create fluent assertion with BDD style
- Suitable for both non-techies and pros via Manual and Groovy Scripting modes.
I think it will be helpful and if you want to read more about it then kindly let me know. I will explain more. Thanks.