Hello Andrew,
The API for ANM is purely for configuration, it does not return anything other than configuration. The state of "inservice" or "out of service" relates to the command under the rserver:
rserver host Server05
ip address 172.16.35.14
inservice <======= **Here**
The probe states don't relate to the configuration, so the API doesn't have a plugin to that information.
However - You could use SNMP seperately to gathter that probe state directly from the ACE and intigrate that into the page you are executing the API for.
Regards,
Chris Higgins