Query hostnames via SCC API


Im trying to get a list of all hostnames to my subscriptions via the
SUSE Connect API, but the api endpoint I would use to query such information /organizations/systems/{id} does only return logins, which I guess translate to my registered systems, but I cant see a way to get it from the api.

Basically Im looking for a way to query the same data, that Im able to put into the system via POST /organizations/systems like hostname.

any hints welcome, thank you for your time