Stablecoin · Base

Tether on Base (USDT)

Tether (USDT) is the largest US-dollar stablecoin, with one USDT designed to track one US dollar. It circulates across multiple chains, most heavily on Ethereum, Tron, and BNB Chain, making it a default rail for crypto payments and settlement. On Base, USDT moves as a ERC-20 token: transfers pay Base network fees in ETH and settle with the network's own finality. Every U.CASH rail that runs on Base, from checkout to swap, supports USDT natively on this chain.

Swap USDT on Base → Buy USDT

Open in the app: Swap · Buy · Get UCASH

Tether on Base at a glance

Network
Base
Standard
ERC-20 token
Block time
~2 seconds
Consensus
Optimistic Rollup (OP Stack)

USDT transfers confirm with the Base network (~2 seconds blocks). Settlement on U.CASH is non-custodial: every payment and swap moves on-chain, direct to a wallet you control.

Tether on Base contract addresses

Tether on Base (USDT) is a token. Always verify the address before trading.

Base0xfde4C96c8593536E31F229EA8f37b2ADa2699bb2

Use USDT on Base

Every action opens with USDT already selected.

Swap USDT

Best-price routing from Base into any asset, cross-chain included, in one signed transaction.

Open the swap →

Buy USDT

Card or bank where the fiat rails serve Base, or swap from any asset you already hold.

Buy USDT →

Get UCASH with USDT

Pay USDT from Base and receive UCASH, the U.CASH network token, non-custodial.

Get UCASH →

Related on U.CASH

Tether (USDT)

The largest US-dollar stablecoin, live on Ethereum, Tron, and BNB Chain.

Overview →

Tether on Tron (USDT)

Tether (USDT) on Tron.

Overview →

Tether on BNB Chain (USDT)

Tether (USDT) on BNB Chain.

Overview →

Tether on Polygon (USDT)

Tether (USDT) on Polygon.

Overview →

Base (ETH)

Ethereum L2 built on the OP Stack.

Overview →

Tether on Base: FAQ

What is the USDT contract address on Base?
0xfde4C96c8593536E31F229EA8f37b2ADa2699bb2. It is the verified ERC-20 token deployment listed above with its explorer link. Always check the address before you trade or accept USDT on Base.
How do I swap USDT on Base?
Open swap.u.cash/usdt-base and the pair arrives prefilled: USDT on Base as the asset you pay. Pick what you want to receive, confirm the route, and your wallet signs one transaction.
How fast are USDT transfers on Base?
Base runs Optimistic Rollup (OP Stack) with ~2 seconds blocks, and USDT settles with the network. U.CASH watches confirmations per your checkout policy.
Can I move USDT from Base to another network?
Yes. The same swap screen routes cross-chain in one signed transaction: choose a destination network and the router bridges alongside the trade, so the output lands as USDT (or any asset you pick) on the other chain.
What does it cost to use USDT on Base?
You pay the Base network fee in ETH for each transfer. Swaps carry a flat, transparent fee shown before you confirm; there are no spreads or hidden routing cuts.
Get started

Tether on Base, your keys

Swap, buy, and settle USDT on Base non-custodial, straight to the wallet you control.

Swap USDT on Base → Buy USDT