API for Spotify for Artists data?

[CelestialAeon]

I'm wondering if there is any official API available for Spotify for Artists data calls? We are running an indie label with quite a few artists and it would be great to have a simple inhouse API tool that would allow us to fetch all the artists monthly data via call instead of browsing the distinct SfA pages manually for each.

We are looking for the calls that would allow us to download the daily streams graph data from 2015 like it shows on SfA graph view etc.