Decentralized Lending
Borrowing and lending cryptocurrency through smart contracts without banks or credit checks.
What is DeFi Lending?
Decentralized lending refers to blockchain-based lending protocols that allow users to borrow or lend cryptocurrency without a bank, broker, or credit bureau. Lenders deposit tokens into a smart contract-governed pool and earn interest paid by borrowers; borrowers pledge over-collateralized cryptocurrency (typically 130–150% or more of the loan value) to receive a loan in a different token. Interest rates adjust algorithmically based on the utilization rate of each lending pool — higher utilization drives higher rates to attract more lenders. Because loans are over-collateralized, no credit check or identity verification is required: the collateral itself guarantees repayment. If collateral falls below the required ratio due to price movements, the protocol automatically liquidates the position. Leading decentralized lending protocols include Aave, Compound, and MorphoBlue. Risks include smart contract vulnerabilities, oracle manipulation, and liquidation cascade events during market crashes.
Example
A user deposits 10 ETH (worth $30,000) as collateral into Aave and borrows 15,000 USDC (a 200% collateralization ratio). They use the USDC while keeping their ETH exposure. They pay an algorithmically set interest rate — say 5% annually. If ETH's price drops and the collateral ratio falls below 130%, a liquidator repays the loan in exchange for a portion of the ETH collateral at a discount.
Source: Aave Protocol Documentation