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Stablecoins3 min read
Jul 9, 2026

Stablecoin Swaps: USDT vs USDC — When & How to Convert

USDT and USDC are the two largest stablecoins. Convert between them across 10+ networks with near-zero slippage — for a protocol, a payment or a fee optimization — and AEXI finds the best rate instantly.

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USDT and USDC, Side by Side

USDT (Tether) is the largest stablecoin by market cap and the default choice on most chains. USDC (Circle) is the second, distinguished by its regulatory posture and transparency.

Both target 1:1 with the US dollar, but their footprints differ. USDT dominates on Tron and in Asian markets; USDC is the stronger presence in US DeFi.

Swapping between them moves value into whichever ecosystem you need without going through fiat at all.

Why Convert at All?

Protocol requirements, mostly — some DeFi platforms only accept one of the two. Occasional arbitrage is another reason, since USDT and USDC sometimes trade at slight premiums to each other.

Then there is fee math. USDC on Base transfers for a cent, while USDT on Ethereum can cost $5+. Bridging and swapping across networks routinely saves money on bigger moves.

And some people split between the two issuers on purpose, to avoid single-issuer risk.

The Swap Flow on AEXI

Connect your wallet, set USDT as the source token and USDC as the target — or the other way around.

Pick the network or let AEXI suggest the cheapest one, enter the amount and confirm. Most stablecoin pairs settle in under 30 seconds.

Because AEXI pulls quotes across multiple DEXes and pools, the fill lands as close to 1:1 as the market allows.

Where the Pairs Live

Ethereum, Arbitrum, Base, Polygon, BNB Chain, Optimism, Avalanche, Linea, Scroll, Gnosis and more are supported.

Cross-network swaps work too — USDT on Ethereum to USDC on Base in a single transaction.

Every swap stays non-custodial: your stablecoins never leave your control until the moment of exchange.

Ready to start?

Put what you learned into practice. Swap tokens, bridge assets, and explore 80+ networks.