Tabs / Chord Chart API Access

Hi, I’m a student developing a Mobile App which seeks to provide chord charts to users. Unfortunately, I haven’t been able to find a public API that can give me access to the chords for popular songs. Ultimate-Guitar and Songsterr do not offer API access. I was wondering if HookTheory can provide this? I know this service was trained on 40k+ songs, so I was wondering if those chord charts can be connected to via API? I would be willing to talk business dealings for this matter. Or if not, would anyone know where else I can look for this use-case? My back-up is a webscraper, but I may run into legal trouble I have found… Any and all input welcome!!

just curious - what type of chord charts? standard musical notation? guitar/piano fingering? tabs? Nashville? something like

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