What Is Aave (AAVE)? How DeFi Lending Works, Uses & Risks

Aave is a decentralized finance (DeFi) protocol that lets users supply supported crypto assets to liquidity markets and borrow other supported assets against collateral. Its smart contracts manage these transactions on supported blockchains, while market parameters can differ by asset and network. Aave is an application protocol, not a bank account or a guaranteed source of yield.

How does Aave work?

When a user supplies an asset, it becomes part of a market’s liquidity. Eligible users can borrow from that liquidity by posting collateral. Rates adjust with market utilization, and supplied assets may earn interest funded by borrowing activity. Borrowing is generally overcollateralized: the value and risk parameters of collateral must support the outstanding debt.

Aave tracks account risk with a health factor. If collateral value falls, debt grows, or market conditions change enough to push the health factor below the liquidation threshold, a position can become eligible for liquidation. Users should understand each market’s collateral, loan-to-value, caps, and liquidation settings before interacting.

Supplying and borrowing: what is the difference?

A supplier deposits an asset into a supported reserve and receives a position that reflects the supplied balance. The asset may be used as collateral if the market allows it and the user enables that setting. A borrower selects an asset to borrow and must maintain enough eligible collateral while repaying principal and accrued interest. Rates, supported assets, and limits vary by market; always check current parameters rather than relying on an older screenshot or estimate.

What is the AAVE token used for?

AAVE is the protocol’s governance token. Eligible holders can vote on proposals or delegate voting power, helping shape protocol parameters and other decisions. AAVE is distinct from the assets supplied to lending markets, and holding the token does not guarantee protocol income or price appreciation.

Common uses of Aave

• Supplying supported digital assets to a market
• Borrowing another supported asset against collateral
• Building applications that integrate lending and borrowing
• Participating in Aave governance with AAVE

Aave risks to understand

DeFi lending involves smart-contract, oracle, blockchain, liquidity, and market risks. Collateral values can move quickly; borrowers can be liquidated, and supplied assets may be affected by protocol or network incidents. Rates, supported tokens, and risk controls vary by market and can change. Review current official documentation and independent security information before connecting a wallet or approving a transaction.

Aave compared with Bitcoin and Ethereum

Bitcoin is a payment network and digital asset with a different design goal. Ethereum is a programmable blockchain that hosts smart contracts and applications. Aave is an application protocol deployed across supported blockchain markets; it uses these networks rather than replacing them. Read our guides to Bitcoin, Ethereum, blockchain, and cryptocurrency basics.

Frequently asked questions

Can Aave borrowing be liquidated?

Yes. If a position’s health factor falls below the applicable threshold, it can become eligible for liquidation under that market’s rules.

Does AAVE automatically earn lending interest?

No. AAVE is primarily the protocol’s governance token. Lending interest applies to supplied assets when the relevant market conditions and terms support it; it is not a guaranteed return.

Is Aave risk-free?

No. Smart contracts, price feeds, networks, and volatile collateral can all introduce risk, including loss of funds.

Before using Aave

Check that you are using the official protocol interface, confirm the blockchain and asset contract, and read the current market parameters. Never share your seed phrase. Learn more in our guide to keeping cryptocurrency safe. For technical details, see the official Aave V3 overview and AAVE token documentation.

This article is for educational purposes only. It is not investment, legal, or tax advice. Crypto assets and DeFi protocols involve substantial risk, including loss of funds.