For WordPress merchants, there are plugins available to add cryptocurrency features to a site. Using those plugins, you can create a cryptocurrency calculator, add real-time rate charts, determine transaction totals, and other interesting things that might help you when working with cryptocurrencies. You can use WP Bitcoin Wallet, Bitcoin Faucet, or others if you don't want to specialize yourself in bitcoin, but believe me, it hasn't reached its top yet. Visit
https://haruinvest.com/blog/bitcoin-savings-account-with-interest/ for more, I am sure you will find something really interesting there.