Question regarding the Nominatim API

We have a multiple set of GPS bike rides (set of lat / lon) and we’re considering using the nominatim reverse geo API to detect the country/countries the cyclist was on while cycling.

This would be used to give our visitors the ability to filter the available gps rides per country.

FYI: We wouldn’t check every data sample, but only a couple of samples per ride so (we need at least 1 country / ride, if we can detect more with the other samples that is a bonus) - I don’t think we’ll need plenty of API calls.

We would only link basic information (country, county) to the ride and certainly NOT store the full address.

Would it be ok to use the public API for this?