One of the largest DeFi applications, 1inch is a decentralized exchange (DEX) aggregator that analyzes thousands of quotes and fees across DEXs to offer low prices to its users.  1inch uses over 300 liquidity sources across well-known blockchain networks, including Ethereum, Polygon, Arbitrum, and Optimism. 1inch is powered by a host of native protocols for flexible and secure swaps and limit orders.  Additionally, 1inch also has a derivative-based product called 1inch Earn for passive income.