The complete solution

There’s a new application called Faast, a service that claims to enable secure cross-chain trades by utilizing a few popular wallet clients and two well-known hardware devices Ledger and Trezor. This means users can swap BTC for ETH, and trade various ERC-20 tokens in a secure manner without leaving a trusted environment.

Minus the thumbprints, but that is coming.  Faast must remarket themselves as the complete swap net.  Get python message interface, open architecture your swap net connector,  connect it to the exchanges, gt a liquid fiat solution.