From personal experience I can recommend
crypto payment gateway, it is a cryptocurrency payment gateway for bitcoins and not only. How does it work? The user pays in the most familiar form - fiat currency, and you automatically receive transfers in Bitcoin, USDT or Monero. 1 minute - the average time customers spend on payment. 83% - the average percentage of successful payments. Your cryptocurrency is available for withdrawal immediately after registration. In addition to fast operation, they took care of your comfort when using the widget. A single widget for accepting payments without unnecessary questions. Favorable exchange rate of fiat funds to cryptocurrency. Optimized exchange rates: get an unbeatable advantage with our optimized exchange rates. When converting fiat payments to cryptocurrency or vice versa, our system automatically selects the most favorable exchange rates available. Highly recommended reading