The directory now offers a new OAuth Scope called directory.sites.r which can only read information from the sites.

A new endpoint has also been added to return information of a single page (/api/v1/sites/{site_id}).

Also, addresses can now be retrieved for each site if they have been added.

Furthermore, the site_id is now also returned for the machines, if a site has been assigned to the machine.

Further Reading: Zaikio Hub API Reference