Found out today when ramping up for an administration we do several times a year that we now no longer have access to some of the Directory Contact API calls, which are unfortunately fairly mission critical.
I know they were working as recently as December, or at least November. Was there any notice given?
I think it would help if you list which API’s you are referring to 
Sorry, I was trying to refer generally to the ones in documentation under Contacts->Directory Contacts.
The change that has blown up our code is to the Search Directory Contacts, which sometime in the last couple months has been restricted from XM Directory Lite.
api.qualtrics.com/c79e78a949572-search-directory-contacts
List Directory Contacts and List Opted Out Directory Contacts also seem to be restricted, but we don’t use those. There may be others.
Enter your E-mail address. We'll send you an e-mail with instructions to reset your password.