Thunder Client - Rest API client for VS Code, lightweight Postman alternative
HTTPie for Terminal - Developers all around the world rely on HTTPie for API testing.
Runscope - Log, monitor and measure your API usage to solve API problems fast.
ReqRes - A hosted REST-API ready to respond to your AJAX requests.
Postman - The Collaboration Platform for API Development
Appcircle - Download AppCircle apk 1.3 for Android. App Circle lets you share apps with friends and view apps your friends use.