CoinsFlow is a crypto payment gateway that takes Bitcoin, Litecoin, Ether, BNB, USDT and USDC. Every coin works the same way: an invoice priced in the coin or in US dollars, a hosted payment page with a fresh address and a QR code, a signed webhook when it is paid, and withdrawals to your own wallet. What differs is how fast a payment counts and what it costs your customer to send, so each coin has its own page.
Or let the customer choose: price the invoice in dollars and leave the coin out, and the payment page offers every coin you take. That is pay in any coin.