Polygon has become the latest blockchain to integrate USDT0 and XAUt0, Tether’s omnichain versions of stablecoins USDT and XAUT, highlighting a rapid expansion in the stablecoin market. This strategic move comes as the liquidity of stablecoins has surpassed $1.6 billion.
USDT0 and XAUt0 Enter Blockchain Ecosystem
Unlike traditional stablecoins, USDT0 and XAUt0 are not directly backed by assets like cash or gold. Instead, they are minted when users deposit USDT or XAUT into a specific Ethereum contract, which acts as a “LockBox” for the ecosystem.
Launched in January 2025, USDT0 serves as the omnichain version of USDT, enabling access to dollar-indexed liquidity across multiple networks. XAUt0 followed closely, providing gold-backed liquidity in a similar manner.
Polygon is now the eleventh blockchain to support USDT0 and the third for XAUt0, joining previous deployments on TON and HyperEVM from Hyperliquid. The market capitalization for USDT0 has risen to nearly $1.6 billion within just two months, while XAUt0 has reached $2.5 million, according to CoinGecko data.
Cointelegraph reports that Polygon’s integration marks a significant milestone for XAUt0, being its third blockchain expansion. In contrast, USDT0 has achieved greater adoption, spanning eleven blockchains since its launch.
Why Polygon is Central to Stablecoin Adoption
Polygon was chosen for this integration due to its strong existing presence in the stablecoin ecosystem, supporting over $1 billion in USDT liquidity and six million wallets, making it a crucial foundation for both individual and institutional adoption.
The network has also undergone significant infrastructure upgrades, including the AggLayer and Bhilai Hardfork, which enhance its scalability and compatibility with omnichain projects.
These advancements position Polygon as an “ideal home” for omnichain stablecoins, ensuring that the current Polygon-based USDT (PoS USDT) will automatically be integrated into the USDT0 network without needing contract address changes.
This integration allows dollar-indexed and gold-backed liquidity to be natively accessible on Polygon, which opens up new possibilities for DeFi applications, payment systems, and the institutional adoption of real-world assets.
A Significant Step in Stablecoin Interoperability
This integration is also notable as the second major upgrade of USDT0 involving over $1 billion in liquidity, following its initial launch on Arbitrum. Polygon now plays a critical role in enabling seamless transfers of stablecoins across various chains.
Since Ethereum serves as the LockBox chain, all USDT0 and XAUt0 tokens minted on the networks correspond with reserves locked on Ethereum. This system ensures that the supply across blockchains remains consistent with deposits on the base chain.
The broader context underscores the increasing demand for stablecoins as a foundation for digital payments and tokenized assets. With USDT’s market cap exceeding $167 billion and XAUT surpassing $1 billion, the introduction of omnichain liquidity tools like USDT0 and XAUt0 reflects a market increasingly focused on interoperability and scalability.
John is a seasoned journalist at The Bothside News, specializing in balanced reporting across news, sports, business, and lifestyle. He believes in presenting multiple perspectives to help readers form informed opinions. His work embodies the publication’s philosophy that truth emerges from examining all sides of every story.
