US Patent 10963370 Default mock implementations at a server

A system may include a mocking server and one or more tenants served by the mocking server. A tenant may test an application programming interface (API) using a mocking service. For example, the mocking server may run a mock implementation of an API based on an API specification, and the server may expose an endpoint of the mock implementation for API testing. In some cases, the API specification may use an additional service. The mocking server may need an implementation for this additional service in order to test the API. For improved efficiency and reliability of the mocking service, the mocking server may store pre-configured mock implementations for various service or complementary APIs, which can be publicly accessed and shared across multiple different tenants. The pre-configured mock implementations may enable a user to test an API without providing a mock implementation for each additional service indicated in the API specification.