We’re excited to announce that Ondo’s U.S. Dollar Yield Token (USDY), the market-leading permissionless tokenized U.S. Treasury token, is now live on the Sei Network. Institutional-grade yield is now accessible on one of the fastest and most performance-oriented layer-1 blockchains.
This launch marks a key milestone in USDY’s multichain expansion, delivering yield-bearing dollar exposure with deep liquidity and seamless composability across the DeFi economy.
A Next-Gen Execution Layer for RWAs
Sei’s breakthrough architecture, with near-instant finality, parallelized execution, and high transaction throughput, positions the network as a next-gen infrastructure for capital-efficient financial products. With USDY now natively supported on Sei, users and developers gain direct access to high-quality yield while benefiting from the speed and composability of Sei’s Layer-1.
Key unlocks for users:
- Yield-bearing dollar exposure: Users can hold USDY to access yield backed by short-term U.S. Treasuries and cash instruments, combining sustainable yield generation with price stability.
- Global access: Non-U.S. individuals and institutions can now access tokenized Treasuries directly on Sei without intermediaries.
- Fast execution: Sei’s performance rails support capital-efficient operations without sacrificing transaction speed or reliability.
Key unlocks for developers:
- Composability into DeFi primitives: USDY integrates with native Sei applications, enabling advanced yield strategies, treasury management, and capital markets products.
- Secure and productive collateral: With institutional-grade backing, USDY can serve as reliable collateral in lending, trading, and liquidity-provision contexts.
- Seamless integration: Sei builders can quickly and easily integrate USDY as productive collateral, treasury assets, or yield primitives into protocols across DeFi.
Ian De Bode, President at Ondo Finance:
“Expanding Ondo USDY to Sei’s high-performance blockchain broadens global access to tokenized U.S. Treasuries. Everyone from individuals to enterprises can now leverage a high-quality, sustainable, and stable source of yield on Sei to power a myriad of use cases across the DeFi ecosystem. This is another key step toward establishing USDY as a core primitive of onchain finance.”
Justin Barlow, Executive Director at the Sei Development Foundation:
“Introducing Ondo USDY to the speed and throughput of Sei will give users access to a high-quality, Treasury bills backed asset that can be used for borrowing and lending, cash management, cross-border payments, and so much more. The addition of Ondo to the Sei ecosystem is another key step in bridging the gap between DeFi and traditional finance on the world’s most performant crypto rails.”
Expanding USDY’s Multichain Growth
This integration builds on USDY’s growing footprint across leading blockchains, enhancing accessibility and utility for users worldwide. With each deployment, USDY brings real-world yield into more ecosystems, reinforcing its role as a foundational RWA primitive in DeFi.
Stay tuned for more ecosystem partnerships, integrations, and developer tooling that will unlock even more ways to put USDY to work on Sei.



