I used WireMock extensively in a recent project that had a dependency on flaky REST API. Using the proxy/recording feature to quickly get some canned responses

I used WireMock extensively in a recent project that had a dependency on flaky REST API. Using the proxy/recording feature to quickly get some canned responses from the dependency allowed us to perform integration testing even though the dependency was frequently down...we basically mocked it away so we could have a reliable CI environment. Later on we were able to stabilize the dependency but we kept the mock service in several cases because it provided significant flexibility.