Can we disable Integration and Process' End User interfaces?

Summary:

We built a process application and integrations, but want our customer's end users to only interact with them using our webapp that sends REST API calls to the process application.

Content (please ensure you mask any confidential information):

We built a web application which should be the only thing the end users of our customer interact with. The web application uses a process applications that we built in OIC Process. The web application interacts with the process application solely through the OIC API, to start process instances, update and complete human tasks, retrieve a task list, etc.

My question therefore is: