Uniswap Labs launched an aggregator hook on Ethereum, Base and Robinhood Chain, The Block reported on Oct. 22.
Through the hook, Uniswap v4 can process trades using liquidity on external platforms.
At launch, external liquidity sources connected included Fluid, Curve and PancakeSwap, the report said.
The aggregator hook can be used via the Uniswap web app and API. Uniswap Labs plans to expand the supported blockchains.
Uniswap first introduced the aggregator hook in March on Tempo, a layer 1 blockchain.
Tempo is a payments-focused blockchain developed by Stripe and Paradigm, and supports the aggregator hook only on the web app. Ethereum, Base and Robinhood Chain support both the web app and the API, Uniswap Labs said.
Uniswap first disclosed plans for the aggregator hook in its "UNIfication" proposal in November 2025.
Uniswap said the update makes v4 an aggregator that brings together liquidity from multiple exchanges to execute trades.
Chi-gyu Hwang
delight@d-today.co.kr