In reply to Ariel.

The endpoints and their meaning are documented in the Admin Guide:
https://go.documentation.sas.com/?cdcId=calcdc&cdcVersion=3.5&docsetId=calatf&docsetTarget=n0o6xx292jn2jmn1pnj3s3oqcebw.htm&locale=en
I believe it is one or both of these:
Export data from reports.
/reportData_capabilities/exportData
Export detail data from reports.
/reportData_capabilities/exportDetailData