OKX has rolled out USDT0, a unified version of Tether’s USDT stablecoin, across its ecosystem, including X Layer (the exchange’s Ethereum Layer 2 network), its wallet, and the centralised exchange. The integration is designed to simplify cross-chain transfers, eliminate bridging risks, and deliver deeper liquidity across 12 blockchains, including Arbitrum, Optimism, Polygon, Berachain, and Unichain.
According to OKX, USDT0 is powered by LayerZero’s Omnichain Fungible Token (OFT) framework, which ensures all transactions remain 1:1 backed by canonical USDT. The model replaces wrapped tokens and traditional bridging with a more secure, efficient settlement system, providing traders and developers with faster cross-rollup transactions and reduced friction.
The move also enables direct liquidity flows between OKX’s centralised and decentralised products, marking a significant step in bridging CeFi and DeFi. Star Xu, founder and CEO of OKX, called X Layer “the new money chain,” highlighting that the partnership with Tether gives users access to stable omnichain liquidity across multiple networks.
Adoption is already surging. Since launch, USDT0 has processed over $11.3 billion in cross-chain bridge volume through more than 251,000 transfers, making it the most active OFT in the LayerZero ecosystem.
Tether, meanwhile, is preparing to expand its stablecoin reach further with a planned rollout of USDT on the RGB protocol, aimed at unlocking new use cases for Bitcoin beyond its traditional role as a store of value. Together, these developments signal a broader push to make stablecoins the backbone of on-chain global finance.
