GraphQL interface doesn't seem to be working

I have been trying to figure out a way to use an api key to retrieve the username of an image author but have been having no luck. Mapillary JS apparently does not work for this, and the GraphQL queries some users recently have said they had some luck with have been coming up with this error:

{“errors”:[{“message”:“Access denied.”,“severity”:“CRITICAL”}]}

I am not sure if this is a new bug but it seems like the information shouldn’t be this hard to get considering its served to the mapillary web client itself.