Woofun AI reports that Sky, Spark, and Uniswap confirmed the migration of approximately $150 million in USDS ecosystem liquidity to the stablecoin FX Layer. USDS acts as the initial reference asset, supplying foundational liquidity for USDS/USDT and USDS/PYUSD pools. This deployment represents the first large-scale implementation of the framework, aiming to enable issuers such as PayPal (PYUSD), Ripple (RLUSD), Robinhood, and Revolut to utilize shared infrastructure instead of building independent networks. The parties are also exploring yield generation methods for idle funds within the governance structure without direct liquidity provision.

On June 25, Spark and Uniswap announced the joint launch of the FX Layer, a shared liquidity infrastructure designed for multiple stablecoin issuers including banks, fintech firms, and payment providers to avoid redundant pool construction. Spark functions as the orchestration layer, managing liquidity allocation and coordination among different stablecoins, while Uniswap v4 provides a programmable AMM architecture featuring the DualPool hook to execute specific transaction paths.