What are some alternatives?
Postman - Postman is the most efficient way to test, develop and document APIs.
Apigee - Intelligent and complete API platform
Gravitee.io - Gravitee.io is a flexible, lightweight and an open source API management solution.
Paw - Paw is a REST client for Mac.
Runscope - Log, monitor and measure your API usage to solve API problems fast.
Tyk - Tyk is an open-source API gateway and API management platform.