Postman

Postman is a free app that makes developing API easier, faster and better. Available for download on Windows, MacOS, Chrome and Linux, the apps are primarily designed taking the developer`s requirements into consideration and is, therefore, loaded with options and features. Some of the features are saved API requests history, detailed and web-viewable API documentation, flexible API monitoring, mock servers supporting split-stack development, etc. Postman apps are created on an underlying layer, which ensures consistent user experience and performance. Also, they comprise features for all API developers (individuals and teams) and should improve your existing workflow.