Methods and apparatus for enabling efficient testing of application programming interface (API) frameworks and application code are disclosed. According to one aspect of the present invention, a method for capturing a call to an API using a framework including an execution engine that communicate with an adapter to cause the API call to be executed involves making the API call and constructing an object using metadata associated with the API call. The constructed object is converted into a node that is of a declarative metadata format, and the node is stored.