OKX Unifies Stablecoin Liquidity Across Chains with USDT0 Integration

OKX and Tether have integrated USDT0, a unified stablecoin protocol, onto OKX's Ethereum Layer 2 network, X Layer, as well as the OKX Wallet and Exchange. This collaboration aims to streamline cross-chain liquidity and reduce friction in stablecoin transactions, providing a seamless experience for users across multiple DeFi ecosystems. USDT0 is built on LayerZero’s Omnichain Fungible Token standard, ensuring each transfer is backed 1:1 by canonical USDT and is verifiable, eliminating the need for wrapped tokens or complex bridging mechanisms. The integration allows OKX users to deposit, withdraw, and transfer USDT0 across major chains including Arbitrum, Optimism, Unichain, Polygon, and Berachain with minimal effort. This development is part of a broader effort to unify stablecoin liquidity, which has historically been fragmented across different blockchain networks.

The integration of USDT0 on X Layer aligns with OKX’s vision to create a foundational network for seamless and interoperable value exchange. X Layer, launched in April 2025, is described by OKX as “The New Money Chain.” It is fully compatible with Ethereum and supports a range of decentralized applications, enabling developers to deploy Ethereum-based projects with minimal adjustments. By integrating USDT0 into its Layer 2 solution, OKX aims to enhance scalability and reduce transaction costs, offering a secure, efficient, and user-friendly environment for both institutional and retail users. The platform’s Ethereum compatibility also allows it to serve as a bridge between centralized and decentralized finance, offering users a unified experience across ecosystems.

According to the co-founder of USDT0, Lorenzo R., the deployment of USDT0 on OKX’s platforms and X Layer represents a significant step in bridging the fragmentation of stablecoin usage and enabling scalable, cross-chain liquidity. This move is expected to unlock deeper access to DeFi markets, particularly for OKX’s millions of users. Lorenzo R. emphasized that the goal of USDT0 is to make stablecoins universally accessible, usable, and interoperable, which is essential for their role as the foundation of onchain finance. He noted that the integration would allow users to experience faster settlements, transfers between rollups, and direct liquidity movement between OKX’s centralized exchange and decentralized markets.

Since its launch, USDT0 has processed over $11.3 billion in bridge volume across more than 251,000 cross-chain transfers, supporting nine chain pathways. This makes it one of the most active Omnichain Fungible Tokens in the LayerZero ecosystem, highlighting its growing importance in DeFi infrastructure. The rapid growth of USDT0 underscores the demand for unified liquidity solutions in the crypto space. By providing a standardized, transparent, and efficient stablecoin infrastructure, USDT0 is helping to address longstanding challenges in liquidity fragmentation and usability. This, in turn, enhances the overall efficiency of DeFi protocols and user experience.

OKX’s integration of USDT0 across its Layer 2 network, wallet, and exchange positions the company as a full-stack, multichain infrastructure provider, accelerating the mainstream adoption of stablecoins in global finance. The collaboration with Tether also reinforces OKX’s commitment to bridging centralized and decentralized ecosystems, as highlighted by Star Xu, founder and CEO of OKX. He described the partnership as a strategic move that empowers users with stable, omnichain liquidity while streamlining value exchange across trusted networks. With this integration, OKX is not only enhancing its own product suite but also contributing to the broader evolution of onchain finance by promoting a more integrated, accessible, and efficient system.