With the update of entity commerce, a headless option is emerging. We are now including the WebApi 2.x, and with it, the ability to get access to item content through rest.
This is the first versjon, and more will come. It is a part of the transition from a standalone solution, to a more integrated solution with other CMSes or custom platforms.
The whole commerce-part of the entity commerce will then be able to run on our servers, getting regular updates, without the need to make any changes to the "core CMS". It will of course still be possible to run entity commerce as a standalone solution.