API testing (Application Programming Interface Testing) is a software testing type which focuses on the determination if the developed APIs meet expectations regarding the functionality, reliability, performance, and security of the application.

Having the right process, tool and solution for API automation test are more critical than ever. And with the shift-left trend, API testing is more than just a quality control solution but a crucial component of a success CI/CD deployment.

This article will provide the summary of the top API testing tools cover both open-source and commercial solutions that testing teams can select to suit their needs.