Synth sUSD by Synthetix Tracks the price of USD through price feeds supplied by an oracle.
Chimpion is an all in one ecommerce, point of sale, digital wallet with crypto to fiat settlement system. Chimpion’s is launching e-commerce storefronts that allow merchants to accept cryptocurrency payments, choosing their favorite altcoin as the base currency denomination and allowing the merchant to settle their crypto into fiat through a stablecoin.