DEX aggregators are smart contract-based platforms that source liquidity from multiple DEXs to offer users the best possible trade execution. While traditional financial systems rely on centralized intermediaries with limited transparency, DEX aggregators operate on open smart contract logic, enabling fully transparent and efficient routing of trades across fragmented liquidity pools. As a result, DEX aggregators maximize execution efficiency, minimize slippage, and further reduce counterparty risk by decentralizing not just custody, but also liquidity sourcing and routing.