USDT on Aave Optimism

Live Tether USD (USDT) rates on the Aave V3 Optimism market: what suppliers earn, what borrowers pay, how much is available, and the settings that decide both.

Data from Aave's API · updated 2026-11-08 04:27 UTC

Supply APY

3.63%

earned by suppliers

Borrow APY, variable

4.55%

paid by borrowers

Total supplied

$3.77M

3.78M USDT

Total borrowed

$3.36M

3.36M USDT

Utilization

89.0%

share of supply that is lent out

Available to borrow

$414K

oracle price $0.9988

USDT supply and borrow APY history

Averages published by Aave's API

Risk settings

Can be used as collateral	No
Max loan-to-value (LTV)	–
Liquidation threshold	–
Liquidation penalty	–
Reserve factor	10.00%
Flash loans	Enabled
Supply cap used	3.78M of 10.00M USDT (37.8%)
Borrow cap used	3.36M of 9.06M USDT (37.1%)

New to these terms? Read health factor explained and supply and borrow caps.

Contracts

USDT token	0x94b0…8e58
aToken (aOptUSDT)	0x6ab7…0620
Variable debt token	0xfb00…2df7
Price oracle	0xDb4E…7D9c
Interest rate strategy	0x9359…bed1
Pool	0x794a…14aD

Links open the Optimism block explorer.

USDT utilization and interest rate curve

Utilization is 89.0% right now. The chart shows how the rate responds as more of the supply gets borrowed.

Borrow APR Supply APR

Up to 90% utilization the borrow rate climbs gently from 0.00% to 4.50%. Past that point it climbs steeply, reaching 14.50% when everything is lent out. How Aave interest rates work.

E-Mode categories that include USDT

Efficiency mode raises borrowing power between closely related assets. E-Mode explained.

Category (1)	Max LTV	Liquidation threshold	Penalty	As collateral	Borrowable
Stablecoins	0.01%	87.00%	1.00%	Yes	No

About USDT on Aave Optimism

Tether USD (USDT) is listed on the Aave V3 Optimism market. Lenders have supplied $3.77M (3.78M USDT) and borrowers owe $3.36M, so 89.0% of the pool is lent out and $414K is left to borrow. The supply cap is 38% used.

Suppliers earn 3.63% a year, and variable-rate borrowers pay 4.55%. The rate follows utilization: up to 90% the borrow rate rises gently from 0.00% to 4.50%, and above that it climbs steeply to 14.50% when everything is lent out. At 89.0% now, the pool is below that point. Aave keeps 10% of the interest as its reserve factor.

USDT cannot be used as collateral on this market. The best USDT supply rate elsewhere on Aave is 4.68% on the Ethereum Bluechip spoke (V4). The cheapest place to borrow it is Celo at 1.84%. Compare USDT rates on every Aave market.

Among the 17 Aave markets with at least $1M of USDT supplied, this one pays the 10th highest supply rate. Its borrow rate is the 8th lowest of the 17 markets with at least $250K of USDT to lend. A week ago suppliers earned 5.23% and borrowers paid 6.38%, with 91.7% of the pool lent out. Over the past 30 days, the supply rate ranged from 3.23% to 6.83%, and the borrow rate from 4.24% to 8.19% (one reading a day).