Aqua is a shared liquidity layer that allows a single asset base to support multiple strategies simultaneously, reducing capital fragmentation and improving efficiency across DeFi.
The 1inch Aqua protocol lets liquidity providers allocate capital across multiple trading strategies simultaneously — without splitting or locking their funds.
In traditional DeFi, liquidity providers have to divide capital across separate pools, each holding its own isolated balance. Aqua removes this constraint. Tokens stay in the provider's own wallet; Aqua manages a registry of virtual balance allocations across strategies. The protocol only moves actual tokens when a trade executes.
This means a single pool of capital can back an AMM, a limit order book, and an auction mechanism at the same time — each with its own strategy configuration — without any of them competing for the same locked funds.
For developers, Aqua provides a base contract (AquaApp) for building trading applications on top of this shared liquidity layer — custom AMMs, order types, or auction formats — without needing to manage custody or capital fragmentation themselves.
The Problem Aqua Solves
Traditional AMMs achieve O(1) swap complexity by forcing all liquidity providers into an identical strategy: same fee tier, same pricing curve, same parameters. This standardization was the price of computational simplicity. It also locks capital in a single pool, making it unavailable for governance, money-market collateral, or any other DeFi use while deployed.
The consequences compound:
Idle capital — the majority of capital locked in AMM pools sits idle on any given day, earning no fees while still bearing impermanent loss risk.
Capital fragmentation — LPs must split finite capital across protocols, pairs, and price ranges, diluting depth everywhere.
Locked utility — tokens deposited into pools lose governance rights, staking rewards, and money-market composability.
Aqua addresses all three by separating the accounting layer (who has how much) from the strategy layer (how to price and execute), while leaving custody entirely with the maker.
Idle capital — the majority of capital locked in AMM pools sits idle on any given day, earning no fees while still bearing impermanent loss risk.
Capital fragmentation — LPs must split finite capital across protocols, pairs, and price ranges, diluting depth everywhere.
Locked utility — tokens deposited into pools lose governance rights, staking rewards, and money-market composability.
Aqua addresses all three by separating the accounting layer (who has how much) from the strategy layer (how to price and execute), while leaving custody entirely with the maker.