A system includes persistent storage configured to store definitions of interfaces of remote software applications, and a software application configured to define the interfaces. The software application identifies a remote software application system by which the remote software applications are exposed for execution, and obtains therefrom a specification of a particular remote software application. The software application determines, based on the specification, (i) objects accessible by way of the particular remote software application and (ii) functions invokable to interact with the objects. The software application generates actions that define an interface for the particular remote software application. Each action is configured to invoke execution of one or more of the functions by transmitting a request to the remote software application system and, in response, receive, by way of the remote software application system, an output of the one or more of the functions. The actions are stored in the persistent storage to define the interface.