Aave

Aave is a decentralized and open source protocol that offers a variety of financial tools and services. Users can earn interest on deposits and swap and borrow digital assets. Aave is self-custodial, so when a user makes a deposit, no company or centralized authority controls their funds. The whole system is trustless – loans are automatically negotiated by a series of smart contracts, so depositors and borrowers can be complete strangers.