Most web3 wallets today support stablecoins, but very few make it easy for users to move them across chains, or to trust that those transfers are swift and secure. This changes today. Tether, the largest company in the digital asset industry, has launched its Wallet Development Kit (WDK) with native support for USDT0 and XAUt0!

With the release of Tether’s WDK, developers will have access to first-party modules that directly support USDT0 and XAUt0, the omnichain deployment of Tether’s USDT and XAUt (Tether Gold). These modules are developed by Tether’s engineering team and published through official Tether repositories.

With this major milestone, any wallet, app, or financial interface will be able to easily offer native support for USDT0 and XAUt0 transfers across Ethereum, Arbitrum, Polygon, Berachain, Ink, as well as TRON and TON via the Legacy Mesh.

Tether’s Wallet Development Kit is a modular framework that will accelerate wallet development and simplifies the complexity of multi-chain integrations.

The toolkit includes:

• Key management (secure signing, private key derivation)

• Transaction orchestration (fee estimation, nonce management, chain-specific encoding)

• Cross-chain asset transfers (omnichain routing logic for LayerZero OFT and other protocols)

• Messaging support (including Lightspark’s Spark integration for Lightning-compatible flows)

• UX abstractions (prompts, transfer status updates, balance displays, multi-chain recovery)

In short, WDK includes low-level modules for key management and transaction signing, as well as higher-level libraries that simplify everything from asset transfers to account abstraction.

Additionally, WDK’s modular design enables wallet developers to support multiple chains through a single SDK. This replaces the need for multiple blockchain integrations while giving users low fees, fast transfers, and the convenience of paying bridging fees directly in USDT.

Until now, stablecoin integrations have been fragmented. Developers often had to choose between supporting a single chain, integrating unreliable bridges, or manually managing dozens of token contract variations.

With Tether’s WDK, native stablecoin integrations are effectively built directly into the builder toolkit. Developers get full cross-chain functionality for USDT0 and XAUt0 in under 15 minutes, without the need to hunt for contract addresses or ABIs, estimating gas manually, or building chain-specific error handling.

More specifically, WDK’s native support for USDT0 and XAUt0 comes with:

• Prebuilt omnichain stablecoin logic: Native support for bridging USDT0 and XAUt0 across supported chains using Tether’s official routes, without writing custom transfer code.

• Seamless UX between deployment types: WDK automatically distinguishes between native USDT0 and Legacy Mesh deployments and handles all routing and contract interactions behind the scenes.

• Unified API for all chains: Whether moving USDT0 from Avalanche to Ethereum or from TRON to TON, developers use a consistent set of methods and don’t need to understand the differences between contract types.

• No manual config required: All contract addresses, ABIs, gas rules, and routing logic are managed by WDK, eliminating setup errors and reducing maintenance overhead.

• Fee handling in USDT0: Bridging costs are abstracted and payable in USDT0 itself, simplifying UX and avoiding the need for native gas tokens.

This means official stablecoin tooling, user interfaces, and production-ready cross-chain transfer logic are available to builders from day one.

The best infrastructure disappears into the backdrop. With Tether’s WDK, developers can focus on building great on-chain experiences instead of worrying about bridging logic or custom workarounds.

By including USDT0 and XAUt0 in WDK, Tether is setting a new bar for what wallet UX can look like when stablecoin infrastructure is designed for portability, composability, and scale.

We’re proud to see USDT0 and XAUt0 integrated into WDK from day one, and excited to see how developers deliver truly omnichain wallet experiences with less friction, complexity, and extraneous trust assumptions.

For more information on WDK by Tether, visit: wallet.tether.io