Orchestrator Access at Host Level

Hello! I am using the free community UiPath cloud platform and being the only user I am the administrator.

When I try to invoke Get Rest API call below (using provided Swagger),
https://cloud.uipath.com/[accountname]/[servicename]/odata/HostLicenses

I get the below error
You are not authorized to perform this action

I am able to execute all API calls within the Tenant/Service.

How do I make API calls at the host level ?

Thanks,
Am