Uniswap Starts Routing External DEX Liquidity Through V4 Aggregator Hooks

TL;DR: Uniswap has switched on Aggregator Hooks in its web app and API across Ethereum, Base and Robinhood Chain, bringing outside liquidity sources into the v4 routing system. Uniswap is no longer asking traders to choose between liquidity inside its own pools and prices available elsewhere. On Thursday, Uniswap Labs introduced Aggregator Hooks, a routing system that allows its v4 architecture to draw quotations from external decentralized exchanges. The feature is live in the Uniswap web application and API on Ethereum mainnet, Base and Robinhood Chain. Seven outside sources were available at launch. Uniswap says those sources represent more than 90% of decentralized-exchange activity across the supported networks, a company-supplied measure rather than a guarantee of the best execution on every swap. External liquidity, familiar transaction flow The technical approach is unusual. Rather than requiring traders to move into a separate aggregator product, Uniswap wraps external sources as v4 hooks that resemble liquidity pools to the routing engine. The router can compare new quotations block by block and build a route that includes both Uniswap and outside venues. According to Uni...