CoFiX is an automated market maker (AMM) built on the Ethereum blockchain, designed to provide a more efficient and user-friendly decentralized trading experience. Launched in 2020 and backed by prominent investors like Coinbase Ventures and Huobi, its mission was to address issues like high slippage and impermanent loss found in other AMMs by using an external, verifiable price feed from the NEST oracle. This approach allows for more precise risk computation and pricing, aiming to attract professional market makers and traders to its liquidity pools.