1inch rolled out Aqua to the public on July 28, operating across 13 EVM blockchains as what the protocol describes as the first shared liquidity layer for decentralized finance.
Aqua pools liquidity from multiple chains into a unified layer, allowing users and applications to access capital without moving assets between networks. The mechanic relies on a cross-chain settlement system that sits above individual blockchain networks, abstracting away the fragmentation that has defined DeFi infrastructure since Ethereum's dominance was challenged by competitors like Polygon, Arbitrum and Optimism.
1inch, a decentralized exchange aggregator founded in 2018, has processed over $20 billion in cumulative trading volume since launch. The protocol routes orders across multiple liquidity sources to minimize slippage, a feature that now extends to its core swap engine. Aqua extends that routing logic across chains by pooling capital in a single settlement venue rather than forcing users to bridge tokens or swap on isolated AMMs per network.
The 13-chain deployment includes Ethereum mainnet, Arbitrum, Optimism, Polygon, Avalanche, Gnosis Chain, Fantom, Aurora, zkSync, Linea, Blast, Scroll and Base, according to the announcement. The protocol had released Aqua to developers in an earlier stage, allowing builders to integrate the shared liquidity model before full public availability.
Cross-chain liquidity aggregation has attracted institutional interest in recent years as fragmented blockchain ecosystems pushed up capital costs for liquidity providers. Protocols including Uniswap, Curve and Balancer each maintain separate liquidity pools on multiple chains, forcing market makers to choose where to deploy capital or split positions across networks. Shared liquidity layers attempt to solve this by pooling capital once and routing it across chains on demand.
1inch's move to public launch follows a broader trend of DeFi infrastructure consolidating around cross-chain systems. The scale of the deployment, 13 chains simultaneously, is larger than most prior multi-chain launches in the category. The protocol's focus on aggregation, its existing user base, and the capital efficiency gains from shared liquidity position Aqua as a test of whether users will adopt centralized settlement layers over maintaining balances on multiple chains independently.
The number of EVM chains in active DeFi use has expanded to 13 with significant activity in this deployment versus the practical two-or-three-chain focus of most liquidity pools in 2023. That fragmentation is what 1inch says Aqua is built to solve. The protocol will need to demonstrate that the cross-chain settlement model attracts sufficient liquidity to compete with isolated pools that already have entrenched user positions and deep capital on each chain.
