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USDT0 live on Polygon — 12th supported network for omnichain USDT.
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XAUt0 reaches Polygon as its third blockchain integration, following TON and HyperEVM.
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USDT0 market cap rose to nearly $1.6 billion; XAUt0 sits near $2.5 million (CoinGecko data).
USDT0 Polygon integration expands omnichain USDT and XAUt0 to Polygon, boosting interoperability and liquidity. See implications for stablecoin rails and DeFi adoption.
Polygon, a multi-chain scalability platform, upgraded to the USDT0 standard, the unified liquidity network that introduced the omnichain versions of Tether’s USDT and XAUT.
USDT0 (USDT0) and XAUt0 (XAUt0), cross-chain liquidity tokens enabled by LayerZero’s Omnichain Fungible Token architecture, are launching on the Polygon blockchain, Everdawn Labs announced to Cointelegraph on Wednesday.
The integration marks a milestone for XAUt0, with Polygon becoming its third blockchain integration following XAUt0’s debut on TON and Hyperliquid’s HyperEVM.
For USDT0, Polygon becomes the 12th supported blockchain, reflecting the stablecoin’s design to provide the “interoperability backbone” for Tether USDt (USDT), USDT0 co-founder Lorenzo R told Cointelegraph.
Tether USDt (USDT) versus USDT0 (USDT0). Source: USDT0
What are USDT0 and XAUt0?
USDT0 and XAUt0 are omnichain token standards that mirror existing Tether assets across multiple blockchains by minting tokens when underlying USDT or XAUT are deposited into a LockBox contract on Ethereum. They are not separate asset reserves; instead, they enable cross-chain access to the same underlying USDT and XAUT liquidity.
USDT0 launched in January 2025 as an omnichain layer for Tether USDt, and XAUt0 followed shortly after. These tokens use LayerZero-type OFT mechanics to move liquidity without altering the underlying asset backing model.
How does USDT0 work on Polygon?
USDT0 operates by minting omnichain representations when USDT is locked on an origin chain (Ethereum acts as the LockBox). Polygon’s integration means wallets and DeFi protocols on Polygon can now use USDT0 natively, with the same supply tracked across supported networks.