https://<vcenter-FQDN>/lookupservice/mob
Using this link:
https://<center-FQDN>/lookupservice/mob/?moid=ServiceRegistration&method=List
You can access the list() method, you have to fill out the filterCriteria
Leave it ‘blank’:
<filterCriteria>
</filterCriteria>
and click the Invoke Method.
From the vCenter appliance itself you can use the list() method using the lstool.py
/usr/lib/vmidentity/tools/scripts/lstool.py list –url https://localhost/lookupservice/sdk –no-check-cert | grep -v ‘SSL’
Mind that it will hide the SSL part to make screen content more readable.