I would like to develop a program that sends ETH. But I don't want to rely on an exchange such at bittrix or poloniex, as this causes delay (approving time), hassle (confirmation E-Mail), and often even additional costs (withdrawal fee).
Using a wallet, I can avoid these disadvantages. If I understand it correctly, even "online" wallets such as MyEtherWallet do not have these disadvantages.
Is there a (online) wallet offering a (REST) API? Or am I missing something and using a wallet is a stupid idea? How would you do it otherwise?