This is really the first mvp, we will add more features very soon. Right now if you're balance runs out you have you just won't see notes being translated and when that happens you'd have to go check your balance on the website (same one you registered your API Key) and add more funds. We want to make a bot that can let you know when you're API Key is low and send you a DM with an invoice. If you have other ideas for features too let us know!