REST API to cancel the auto-renewal of a member programmatically

Fairly new to the plugin, so apologies if I don’t understand much.

I’m working for a client on this one. I have two sites, one that’s purely about the members that offer a steady stream of courses through an LMS; and another site that also has members but the information there is only for posterity as the client wants to segregate the functions of their business (think of the former as a “member portal” and the latter as the main landing page)

What the client wants is for any membership changes that happen on the member portal (creation, change in membership level, cancellation etc.) to reflect on the main site. Which is cool and all, the REST API you guys have is pretty robust and covers most of the things that the client wants to perform.

However there is one that stumps me, and that’s the cancellation of autorenewals. As far as I can tell, the cancel_membership_level endpoint outright cancels the membership with or without auto renewal; and that’s not exactly what I want as I would rather have the granular control.

And to top it off, I don’t exactly understand the process of how to cancel autorenewals programmatically anyway. So since you guys don’t have that endpoint, creating my own is probably the way to go.

Can you guys point me in the right direction? Thanks.