Most recently, DEX aggregators have begun to play a more distinctive part in the DEX segment. DEX aggregators form user-centric hubs that compose to several applications and protocols, also providing tools to compare and rate services, which allow users to perform otherwise complex tasks by connecting to several protocols simultaneously.[6] CEXs, DEXs and DEX aggregators are all built on the multi-layered DeFi architecture or components, where each layer serves a well-defined purpose.[2] (See Figure: Multi-layered Architecture of the DeFi Stack).