Who has free intraday data going back years? So far the only one I've found is Dukascopy. OP's website doesn't seem to say whether it does or not.
We haven't confirmed whether we'll be able to get the intraday data from another source, hopefully we'll have most of them starting from 2010 at the latest. If that's not possible then it'll have to be since our launch date. But having several years is a high priority.
The main benefit is that since it's an API, it's easy to integrate it into your app, website, or a google spreadsheet
There are dozens of forex api providers out there. It’s a commodity. What does this one compete on against the rest?
Our data is more accurate and we have better customer support.