I perfectly understand that you can’t trust online wallets, but I don’t have the money and knowledge to immediately make a server wallet with many currencies at once, my project is already 80% ready, but with this part it turned out to be a mess, I contacted binance support, they said that it is impossible there, but after studying the coinbase documentation, I believe that it is quite possible with a business account. but i'm still looking for third-party alternatives.