According to Paolo Ardoino (@paoloardoino), Tether's upcoming Wallet Development Kit (WDK) will deliver a unified software development kit enabling support for a billion wallets with integrated trading functionalities. The new toolkit will support Bitcoin, USDt, and XAUt across all supported chains, offer USDT0 integration, and enable swaps, bridging, and DeFi lending. It is designed to be multi-device ready and fully open-source, which could significantly lower the barrier for developers and institutions to deploy multi-chain wallets with advanced trading features (Source: Twitter/@paoloardoino, April 26, 2025). This development is expected to enhance liquidity, cross-chain interoperability, and DeFi participation, making it highly relevant for traders monitoring wallet infrastructure and token movement.