Creates unused unique BTC pay address from your PUB.
Tool generates a new BTC address with XPUB-LIB and checks if it's used. If it is, a new unique address will be returned. Its highly recommended to save unused Index to make next address creation faster.
npm i @unspentio/xpub-lib axios
Supports XPUB/YPUB/ZPUB as well as mainnet & testnet.