Dione API - did anyone play around already?

[hulster]

Last firmware release notes telling the made the API available.
There is a link to the reference, which is the one for the Phantoms.
So not sure which commands really available
I tried a simple one by browser

Http://Diones-IP-address/cisettings/powerstate

Which finally should give back a digit from 0-3.
But get back only a 404 with system Detail Nguni/1.15.2

Doing anything wrong? Or misunderstood.