Lending protocol UI showing collateral and borrowed amount

DeFi lending protocol interface displaying collateral and borrowed amounts in real time.

About this subject

Decentralized lending protocols (DeFi) allow users to borrow crypto assets by depositing collateral in smart contracts. The typical interface shows the collateral balance (usually in ETH or stablecoins) and the maximum borrowable amount, automatically calculated based on the collateralization ratio (e.g., 150%). This ratio varies by asset and platform, such as Aave, Compound, or MakerDAO. Users also see the health factor, a risk indicator that warns when collateral approaches the minimum required value, preventing liquidations. Unlike traditional banks, there is no credit check: collateral is the guarantee. Blockchain transparency lets anyone verify all transactions in real time, while the interface simplifies interaction with complex contracts. In 2024, the DeFi market surpassed $100 billion in total value locked, with lending generating yield for depositors.

Frequently Asked Questions

What is a DeFi lending protocol?

It is a decentralized system where users lend and borrow crypto assets using smart contracts without intermediaries.

How does collateral work in DeFi loans?

Users deposit an asset as collateral and can borrow up to a percentage of its value. If the collateral drops below the minimum, the contract liquidates the position.

What is the health factor?

It is an indicator of position safety. Values near 1 signal liquidation risk; above 2 is considered safe.