ceph restful module configuration

Im trying to understand how to configure the ceph-mgr restful plugin module for Mimic (13.2.8). Some docs (maybe out of date) seem to indicate that the base url for the api is "/api/v0.1", but ours seems to be using just "/api". There used to be a configuration parameter "restapi_base_url", but apparently that is not supported anymore. My question - What is the base URL for the mgr restful module and is it configurable? There are some packages (such as the elasticsearch metricbeat ceph module) that have hard coded "/api/v0.1" as the base URL and wont work with newer ceph releases if that URL doesn't work. thanks, Wyllys Ingersoll