Set the NGC API key to be able to sync microservices from NGC: Make sure you have followed the prerequisites first for generating your NGC Personal Key.

$ ucf_app_builder_cli registry repo set-api-key -a <API-KEY>
  Checking which NGC UCS teams you have access to
  Adding NGC Catalog team ace
  Repository 'catalog-ace' added
  Adding NGC Catalog team ucs-ms

Repository names that begin with “catalog-” indicate that they exist in NGC Unified Catalog as opposed to NGC Private Registry. The NGC Unified Catalog consists of artifacts that are either fully public, or that require some product enablement (subscription) such as ace-ea or nvaie to get access to certain artifacts.