Abstract: A secure multi-cryptocurrency payment gateway is provided. An interface is provided to a customer to select the cryptocurrency exchange may include a login uniform resource locator (URL) of a cryptocurrency exchange. Alternatively, the interface provided to the customer to select the cryptocurrency exchange may include a quick response (QR) payment code for the cryptocurrency exchange. Alternatively, the interface provided to the customer to select the cryptocurrency exchange can include a first further token that includes the token representing the payment request, the first further token allows the customer to authorize the cryptocurrency exchange to send the payment gateway a second further token including the first further token that allows the payment gateway to retrieve a balance amount and a transaction history of the cryptocurrency wallet of the customer.