The Voucherify Validate Voucher Client API provides a way to verify a voucher code given by customer. It is designed for client side integration and is accessible only through public keys. This method is designed to be run directly either in web browsers or mobile apps. Voucherify allows you to manage coupon campaigns with a voucher infrastructure that enables developers with the ability to integrate digital promotions across marketing channels. This platform can be used for referral programs, promo codes, loyalty coupons, vouchers and more. Voucherify.io is a voucher infrastructure platform that is accessed through an API.