http://mocklets.com
If you are looking for a tool to automate your api testing for mobile or web application, try out
http://mocklets.com
It allows you to create mock apis with custom endpoints and support multiple responses per api, which can be updated on-the-go, which is very handy for testing team to test various scenarios without bothering server team.
It also have a basic mock server,
http://flashmock.mocklets.com/ to create basic mocks.