Is this the similar to what you are looking for: GET /api/v2/access-profiles/<id>
If not, I would assume that they are working on a replacement, but that it isn’t documented yet. Seeing as @colin_mckibben has handled most of the other comments on the API replacements, I would wait for him to chime in. He likely has been busy with the new year, and hadn’t see this post yet, or he (or another SP Employee) is still looking into it.