Does anyone know whether OpenAddresses is actually usable for an API? A few years back, I built something to do reverse geocoding based on Google Maps's prices

Does anyone know whether OpenAddresses is actually usable for an API? A few years back, I built something to do reverse geocoding based on Google Maps's prices. I never actually released it because I wasn't confident the coverage was good enough. I guess it might be worth dusting it off and seeing if someone finds it useful.