What are some alternatives?
When comparing Mmock and Paw.cloud, you can also consider the following products
Postman - The Collaboration Platform for API Development
Runscope - Log, monitor and measure your API usage to solve API problems fast.
Apigee - Intelligent and complete API platform
Amazon API Gateway - Create, publish, maintain, monitor, and secure APIs at any scale
soapUI - SoapUI Pro is one of the most prominent API testing platforms around, allowing developers to quickly prototype the functions of their apps and get them to market with little hassle.
Gravitee.io - Gravitee.io is a flexible, lightweight and an open source API management solution.