Skip to main content
Important: We do not provide financial advice or custody funds. All transactions occur on third-party platforms.
CryptoBipto
Log in

Lending Protocol

In simple terms

A lending protocol is an automated money market. Depositors supply assets and earn interest, borrowers post collateral and take loans, and a formula sets the rate based on how much of the pool is in use.

Definition

A smart contract system where users supply assets to earn interest and borrow against collateral.

In depth

Pooled lending protocols aggregate deposits per asset and issue interest-bearing receipt tokens that appreciate against the underlying. Rates are algorithmic functions of utilisation, rising steeply past a target level to attract deposits and discourage further borrowing. Risk parameters — collateral factors, liquidation thresholds and bonuses, supply caps — are set per asset and usually governed by token holders. The principal failure modes are oracle manipulation, a collateral asset falling faster than liquidators can act, and governance itself being captured or rushed.

How does Lending Protocol work?

A depositor supplies an asset and receives a receipt token that grows in redemption value as interest accrues. A borrower posts collateral and draws another asset up to their limit. Utilisation — borrowed divided by supplied — drives both rates continuously. Liquidators monitor positions and act the moment one crosses its threshold. Withdrawal is possible while the pool holds free liquidity, and at very high utilisation depositors can be temporarily unable to withdraw.

An example

A stablecoin pool at an illustrative 80 percent utilisation might pay suppliers around 4 percent and charge borrowers around 6 percent. If utilisation climbs toward 100 percent the borrow rate rises sharply, which pulls in deposits and pushes borrowers to repay until the pool rebalances.

Figures are illustrative only.

What beginners get wrong

  • Assuming deposits are always withdrawable on demand. At high utilisation there may be no free liquidity until borrowers repay.
  • Reading a supply rate as risk-free. Smart contract risk, oracle risk and collateral risk all sit behind it.
  • Ignoring governance. Parameters that define the risk of a position can be changed by a vote.

Related terms

Part of

What is DeFi, and how does decentralized finance work? — the subject page for defi, with all 18 of its definitions in one place.

Educational only — not financial advice.