OKX and Tether Unify Stablecoin Liquidity Across Chains with USDT0 Integration

OKX has partnered with Tether to integrate USDT0—Tether’s omnichain stablecoin—across its Ethereum Layer 2 network, X Layer, as well as the OKX Wallet and OKX Exchange. This collaboration aims to streamline cross-chain transactions and unify liquidity across major decentralized finance (DeFi) ecosystems. The move enables OKX users to deposit and withdraw USDT0 directly through the OKX platform, facilitating seamless access to liquidity on multiple blockchain networks including Arbitrum, Optimism, Unichain, Polygon, and Berachain.

The integration of USDT0 is underpinned by LayerZero’s Omnichain Fungible Token (OFT) standard, which ensures that each transfer is verifiable and backed 1:1 by canonical USDT. This framework eliminates the need for wrapped tokens or complex bridging solutions, reducing friction in stablecoin transfers and improving the overall efficiency of on-chain transactions. According to OKX, the integration allows for faster settlements, cross-rollup transfers, and direct liquidity movement between its centralized exchange and decentralized markets.

X Layer, described by OKX CEO Star Xu as “The New Money Chain,” is designed to serve as a foundational network for seamless and interoperable value exchange. As a fully Ethereum Virtual Machine (EVM)-compatible Layer 2 solution, X Layer offers scalability and lower transaction costs without compromising security. The network is fully integrated into OKX’s product ecosystem, including its wallet and exchange, providing a unified experience for millions of users. The partnership with Tether further solidifies X Layer’s role in bridging centralized and decentralized finance, according to Xu, who emphasized the platform's ability to deliver stable, cross-chain liquidity across the networks users rely on most.

Since its launch, USDT0 has demonstrated rapid growth, achieving over $11.3 billion in cross-chain bridge volume through more than 251,000 transactions across nine blockchain pathways. As the most active OFT within the LayerZero ecosystem, USDT0 has become a key infrastructure asset for DeFi, supporting unified liquidity and simplifying the user experience. Lorenzo R., co-founder of USDT0, highlighted the stablecoin's role in overcoming the fragmentation that has historically hindered stablecoin adoption. “With USDT0 live on OKX and X Layer, millions of users and builders can tap into unified, cross-chain liquidity at scale,” he stated.

The integration of USDT0 on X Layer addresses a key challenge in the DeFi space: the fragmentation of stablecoin liquidity across different chains. Traditional stablecoin versions often require wrapping or bridging to be used across Layer 2 networks, complicating the user experience and splitting liquidity. USDT0, however, provides a standardized version of USDT that operates seamlessly across supported chains, consolidating liquidity and enhancing usability. For institutions and regulators, the integration introduces compliance-ready features such as token address freezing, which increases trust and confidence in on-chain stablecoin adoption. For end users, it simplifies transactions by offering direct access to USDT0 through the OKX Wallet and Exchange without the need to navigate different token standards or bridges.

OKX’s X Layer is positioned as more than just a Layer 2 solution; it is a foundational layer for OKX’s broader Web3 ecosystem. Its performance-driven architecture supports low fees and high throughput, making it an attractive option for developers and users seeking scalable solutions. The network also uses OKB tokens to cover gas fees, further reducing costs for users. With the addition of USDT0, X Layer is now a key player in the movement toward a more integrated and efficient on-chain financial system. As OKX continues to expand its platform, the integration of USDT0 represents a significant step in its vision to provide a unified, cross-chain experience for users across the global cryptocurrency landscape.