Payment Processors for Groestlcoin GRS GRSPay GRSPay Server is a free and open source server for merchants wanting to accept Groestlcoin for their business. The payment server does not need to know your private keys, so your money is safe. CoinPayments Payment gateway providing buy now buttons, shopping carts, and more to accept Groestlcoin, and other cryptocurrencies/altcoins on your website/online store. CoinToPay The Modern Currency Payment Provider you can trust. Supporting Bitcoin, Ethereum, Groestlcoin, Litecoin, Decred, Monero, and many more. AtomicPay AtomicPay eliminates the involvement of a third-party gateway, allowing merchants to accept payments directly from their customers, in a secured and trustless environment. SetGetGo The simplest way to accept crypto payments. We only charge a flat monthly fee. Use our simple button and link generator tools to start accepting Groestlcoin GRS payments in minutes.