Aave is a decentralized, non-custodial liquidity protocol where users supply assets to earn yield and borrow against collateral. The protocol runs on Ethereum and many L2s (Arbitrum, Optimism, Base, Polygon, Avalanche, zkSync, Scroll, Metis) and exposes developer surfaces beyond on-chain contracts: official Aave V3 / V4 TypeScript SDKs, Aave Kit… - View it on GitHub