How to Build a DEX Aggregator to Find the Best Swap Rates

📊 Now LIVE: 2026 Q1 Crypto Industry Report Coins: 17,617 Exchanges: 1,472 Market Cap: $2.605T 0.4% 24h Vol: $116.361B Dominance: BTC 57.0% ETH 10.7% Gas: 0.279 GWEI Login Sign up Cryptocurrencies Exchanges NFT Learn Products API Candy Portfolio Search / All Latest Airdrops Coins & Tokens Guides Wallets & Bridges API Reviews More + API How to Build a DEX Aggregator to Find the Best Swap Rates 4.4 | by Rollend Xavier | Edited by Brian Lee - Updated April 09 2026