Fixed-rate loans on Aave.
Borrow USDC or USDT against your crypto, at a rate that stays the same for the whole term.
Already borrowing on Aave? Fix the rate on your loan
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What happens when you sign.
- 1
Collateral goes in
Your ETH is supplied to Aave in your name.
- 2
The loan comes out
Aave lends you the stablecoin at its variable rate.
- 3
The rate is locked
Part of the loan buys a Kairos swap that pays Aave's variable rate while you pay fixed.
- 4
The term ends
The swap settles to your wallet. Your Aave loan carries on at the variable rate.
Rates are quotes at the time shown and move until your transaction confirms. The fixed rate holds only inside the protected range, and your Aave position can be liquidated if your collateral's value falls. Aave and Kairos are separate protocols; see the risks for each before borrowing. The loan router contract is not audited; view its verified code on Etherscan.
What a rate spike costs you
Variable rates follow pool utilization. When a lending pool runs dry, rates can jump several times over in a day, and every borrower in the pool pays it.
Interest on 100,000 (example)
Enter a loan balance in the rate lock above to price these scenarios with live rates.
Illustrative: simple interest over one term, including the protocol fee. The premium row is what the lock costs if rates stay calm — the price of the protection.
Case study · April 2026
The Aave USDC squeeze
After the KelpDAO rsETH bridge exploit, withdrawals drove Aave's USDC pool to nearly 100% utilization. Borrow rates hit their ~14% ceiling within days, and a governance proposal followed to raise the ceiling toward 40–50% to pull in new deposits.
A 5% lock on the 30-day market covers a rise up to the top of its protected range, roughly 7.5%. Above that the swap pays out its maximum, about $2,000, and closes early, and the loan pays the variable rate for the rest of the month. Figures are illustrative and exclude the protocol fee.