Not properly but I want to add a graph in the future to see if currency prices correlate with sentiment and in the case that they differ, determine how they move towards each other.

I guess the big question is how much the sentiment precedes the price movement, not just correlating with. For example, I can imagine people bad-mouthing a coin when its price is falling. This is not so useful.

Exactly! If you'd want to do data analytics on this I'd be happy to expand the API to fit your needs :)