Using Rasa Core with Node — Alternate Architecture Desired

Does anyone deep into Rasa Core know if it’s possible to treat Rasa Core HTTP as a pure server without it making outgoing calls? I expected that it would analyze the current state and input and respond with an action, letting our client bot perform the action. As it stands, this architecture making outgoing calls seems very odd. Is there a way to configure Rasa Core to be treated as a simple, pure server that simply responds with the updated tracker state to save locally and the next action to pursue?