Postman - The Collaboration Platform for API Development
Ping-API - Automated API testing and monitoring.
TestMace - Powerful IDE to work with API.
HTTPie for Terminal 2.6.0 - Developers all around the world rely on HTTPie for API testing.
Insomnia REST - The most intuitive cross-platform REST API Client ð´
Runscope - Log, monitor and measure your API usage to solve API problems fast.