> I wonder how well Xapo is doing - because this seems like a copycat.
And there's going to be even more copycats than there already are. Making APIs on top of Bitcoin's API is going to get way, way more competitive because that's basically the first idea that every player entering the market has. It's extremely low capital to spin up a new API, so everyone and their mom's dog have been doing it. Transaction fees will be driven down by the copycats, and many of them will probably cut their transaction fees to zero for a long time (ahem, Coinbase).
