Please, consider adding Rank Tracker data to your API (such as positions tracking). This way, users will be able to analyze their keywords growth in a fast and convenient way.
We use Databox to present clients with dashboard with marketing stats. We were excited to see that Ahrefs has integration to Databox. But we are disappointed to see that the data available from your API has mostly to do with links. Nothing about keywords. We would like to show clients a list of keywords and their position.
This 100X personally I'd love to be able to take a list of keywords and query them with the api for a given domain. Ie Does X domain rank for Y keyword and what URL is ranking there for it?