Alexa skill

Context: I have WIFI enabled smart heaters from a company called Rointe. They do not intend to release a API. I have been looking into ways to integrate them to Home Assistant. They do have a Alexa skill.

I was wondering if there is a established way to call a Alexa skill from Home Assistant. Please note from most my reseach, I can only see ways for Alexa to control Home Assistant. In this instance I am looking for some sort of way to develop a integration where Home Assistant pretends to be a Alexa device or call the skill endpoints. Any input would be appreceated