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

📊 Now LIVE: 2026 Q2 Crypto Industry Report Coins: 17,617 Exchanges: 1,504 Market Cap: $2.247T 1.2% 24h Vol: $65.424B Dominance: BTC 55.9% ETH 9.78% Gas: 0.1 GWEI Login Sign up Cryptocurrencies Exchanges RWA Learn Products API Ask 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