OKX has partnered with Tether to launch USDT0 on its Ethereum Layer 2 network, X Layer. The collaboration allows OKX users to deposit and withdraw USDT0 directly through the OKX Wallet and Exchange. This integration offers unified, composable liquidity across decentralized finance (DeFi) ecosystems. The partnership enhances liquidity across networks supporting USDT0, including Arbitrum, Optimism, Unichain, Polygon, and Berachain.
USDT0 is powered by LayerZero’s Omnichain Fungible Token (OFT) standard. This ensures every transfer is verifiable and backed 1:1 by canonical USDT. According to OKX, this structure offers transparency while removing the complexity of wrapped tokens and bridging solutions. The integration enables faster settlements and direct liquidity movement between OKX’s centralized exchange and decentralized markets.
DeFi just leveled up.
In partnership with @Tether_to, USDT0 — the unified liquidity protocol for USDT, the world’s largest stablecoin — is now live on X Layer, OKX, and Wallet.
One USDT across 12+ chains incl. Arbitrum, Optimism, Unichain, & Polygon.
Read:… pic.twitter.com/DvEFwwt5o5
— OKX (@okx) September 9, 2025
By bypassing traditional friction, USDT0 streamlines stablecoin transfers, creating a more efficient infrastructure for on-chain finance. OKX and Tether aim to make stablecoin transfers smoother by eliminating the complexities previously involved. This solution supports cross-chain transactions, benefiting users and developers in decentralized finance.
X Layer is OKX’s dedicated Ethereum Layer 2 network. It is designed to connect users and developers to the broader Ethereum ecosystem. Star Xu, founder and CEO of OKX, refers to X Layer as “The New Money Chain.” He believes it serves as a foundation for seamless, stable, and interoperable value exchange across blockchains.
Xu further explained that by integrating USDT0 across X Layer and other networks, OKX enables its customers to access stable omnichain liquidity. This integration bridges centralized and decentralized finance, allowing faster and easier transactions. With USDT0 now available across OKX’s platform, users can move liquidity across multiple ecosystems quickly and efficiently.
Since its launch, USDT0 has grown rapidly, surpassing $11.3 billion in bridge volume. It has also supported over 251,000 cross-chain transfers across nine chain pathways. This makes USDT0 the most active Omnichain Fungible Token (OFT) within the LayerZero ecosystem.
Lorenzo R., co-founder of USDT0, highlighted the importance of stablecoins in on-chain finance. He stated,
“Stablecoins are becoming the backbone of on-chain finance, and USDT0’s expansion supports cross-chain liquidity at scale.”
The rapid growth of USDT0 signals a shift toward more efficient and frictionless stablecoin transfers, making it increasingly vital for decentralized finance.
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