Blazkowicz [none/use name]

You might find your local state authority provides a lot of free/libre datasets for many things under some form of open data initiative. For currency conversion I’m not even sure you could claim proprietary rights to the underlying data. The APIs could be licensed but the underlying information is not really licensable. Currency conversion is so volatile that you will struggle to find user-sourced datasets in the same way as mapping is.

None of them are a grift. They get used by financial traders for performing grifts, but the grift was and always has been stock market manipulation. AI is incredibly useful and many competent engineers now use it effectively. I expect the bubble of anthropic/openai will pop once local or on-prem models get better.