A DeFi aggregator is a platform that combines multiple decentralized finance services into one interface, allowing users to find the best rates for trading, lending, and yield farming. It collects data from various decentralized exchanges (DEXs), lending protocols, and liquidity pools to optimize transactions. Users benefit from reduced slippage, improved liquidity, and cost efficiency. Popular in the crypto community, DeFi aggregators simplify access to fragmented DeFi markets. They empower users to manage their assets efficiently, without needing to interact with multiple protocols individually.