Smex is a decentralized exchange (DEX) that facilitates the trading of spot and perpetual cryptocurrency contracts. It operates on the Arbitrum blockchain, aiming to provide a high-performance, low-cost, and self-custodial trading experience. The platform combines a hybrid automated market maker (AMM) and order book model to offer deep liquidity and minimal price impact for traders. Its mission is to deliver a secure and efficient trading environment characteristic of centralized exchanges but within a decentralized framework.