Skip to main content

What is OpenUSDT (oUSDT)?

Learn about OpenUSDT (oUSDT), the interoperable USDT token that enables seamless cross-chain transfers with 1:1 backing.

Eco avatar
Written by Eco
Updated today

OpenUSDT (oUSDT) is a cross-chain stablecoin that upgrades how Tether (USDT) moves across different blockchain networks. Unlike traditional bridged tokens that fragment liquidity, OpenUSDT is backed 1:1 with native USDT locked on Ethereum and Celo, creating unified liquidity for the world's largest stablecoin across multiple ecosystems.

This interoperable USDT token addresses one of the biggest challenges in modern DeFi: seamless crypto movement between chains without the typical bridging complications and fees.

How OpenUSDT Works: The Technical Foundation

OpenUSDT uses an interoperability infrastructure to enable smooth cross-chain transfers. OpenUSDT leverages Chainlink CCIP and Hyperlane for cross-chain transferability, ensuring secure and efficient token movement across supported networks.

The token operates on a burn-and-mint mechanism where USDT is locked in smart contracts on hub chains like Ethereum and Celo, while equivalent oUSDT tokens are minted on destination chains. This approach eliminates the need for wrapped assets and maintains the 1:1 backing that users expect from a reliable stablecoin.

OpenUSDT in the Superchain Ecosystem

OpenUSDT (oUSDT) is a new interoperable USDT token for the OP Superchain ecosystem, enabling cross-chain DeFi use cases. The integration with Optimism's Superchain represents a significant milestone for cross-chain stablecoin adoption.

Within the Superchain, OpenUSDT benefits from shared security models and unified liquidity pools. USDT0 will leverage native Superchain interop, enabling frictionless movement between OP Chains with 1-block finality, zero slippage, and a unified security model.

Key Benefits for Users and Developers

Reduced Transaction Costs and Slippage

Deeper liquidity means less slippage on stablecoin swaps, opening up market efficiency. Users experience significantly lower costs when transferring USDT across supported chains compared to traditional bridging solutions.

Enhanced Security Model

Unlike wrapped tokens that introduce additional trust assumptions, OpenUSDT maintains direct backing by native USDT reserves. Eco's intent-centric architecture protects users from capital loss risk, providing similar security guarantees for cross-chain stablecoin transfers.

Future-Proof Design

OpenUSDT can seamlessly upgrade to native Superchain interop with ERC-7802, ensuring compatibility with future protocol improvements. This forward-thinking approach means early adopters won't face migration challenges as the ecosystem evolves.

Market Impact and Adoption

The stablecoin market continues to expand across multiple chains, with stablecoin supply increasing across a broader range of chains, with 10 chains now exceeding a market cap of $1 billion. OpenUSDT addresses this multi-chain reality by providing unified access to USDT liquidity across all chains.

For onchain app developers, OpenUSDT represents an opportunity to access deep stablecoin liquidity without building complex cross-chain infrastructure. The token's availability across 12 different chains today, with permissionless expansion capabilities, makes it an attractive option for applications requiring reliable stablecoin access.

Users can easily transfer OpenUSDT (oUSDT) across supported networks using the Eco Portal, which provides a simple interface for cross-chain stablecoin transfers with competitive rates and minimal friction.

Bottom Line: OpenUSDT (oUSDT) solves the critical problem of fragmented stablecoin liquidity by providing seamless, 1:1 backed USDT access across multiple blockchain networks, making it easier for users to move value and for developers to build cross-chain applications.

Did this answer your question?