Response Management exposes a number of global static methods and invocable methods that you can call from your Apex code or the Process Builder to integrate your application with the application.
Apex Classes with Global Static Methods
Global static methods can be called from Apex code that are external to the application.
Apex Classes with @InvocableMethod
Invocable Methods are also global static methods. Additionally, they can be invoked from a process built with the Salesforce Process Builder tool.