This is "Credits in ArcGIS Online (AGOL)". Sarah Bubka from Esri gives us an overview of credits as well as spending credits, management, etc.

Additional Links:
Understand Credits: https://doc.arcgis.com/en/arcgisonli...
Credits by Capability: https://doc.arcgis.com/en/arcgisonli...
Configure Credits: https://doc.arcgis.com/en/arcgisonli...
Understanding and Managing Credits in ArcGIS Online https://www.esri.com/arcgisblog/prod...