Aave V3 is a non-custodial, on-chain lending protocol. People deposit crypto into shared liquidity pools to earn variable interest, and borrowers take overcollateralized loans against those deposits. In our review it ranks first of fifteen in the DeFi protocols group, with a best score of 9.3.
How does Aave V3 work?
When you supply an asset you receive an interest-bearing token that grows as borrowers pay interest. Borrowers must post collateral worth more than they take out, so every loan is overcollateralized. Interest rates move algorithmically with pool utilization: the more of a pool is borrowed, the higher the rate climbs. If a borrower's collateral value falls too far relative to their debt, their position can be liquidated, meaning part of the collateral is sold to repay lenders and keep the pool solvent. A position's health is tracked by a health factor, and letting it fall toward the liquidation threshold is the single most common way users lose money here.
Why lending and borrowing without selling?
The core appeal is liquidity without a sale: you can borrow a stablecoin against volatile holdings you want to keep, use leverage, or earn passive yield on idle assets. That flexibility is also where risk concentrates, because a borrowed position must be actively managed through market swings.
What does our data show?
Our measurements record roughly $17.3B in total value locked, the largest in this lending set, spread across 21 chains, with about 4.4 years of on-chain history. Two audits are on record. Aave is also one of the few protocols here to publish a dedicated status page, which we count toward transparency.
What are the main risks?
- Smart-contract risk: audited code can still contain bugs; audits reduce but never remove this.
- Oracle risk: borrowing and liquidation rely on external price feeds. Bad or manipulated prices can trigger wrongful liquidations or bad debt.
- Liquidation risk: volatile collateral can be sold at a loss during sharp moves.
- Governance and parameter risk: collateral factors and asset listings are set by governance and can change.
Who is it for?
Aave suits users who want deep liquidity, broad multi-chain access, and a long public track record for supplying stablecoins or blue-chip assets, or for borrowing without selling. It is less suitable for anyone unwilling to actively monitor a leveraged position, or who wants fixed, predictable rates: rates here are variable by design.
Note: we assess scale, audits, track record, chain reach, endpoint responsiveness and status transparency. We do not measure lending or borrowing rates, which change constantly and should be checked directly before use.