EulerSwap

ArbitrumRegistered

A custom-curve Uniswap v4 hook that routes swap assets through Euler Finance lending vaults and enforces a proprietary AMM curve invariant (EulerSwap v1). Intentionally reverts on direct liquidity additions and donations; swap accounting is handled entirely in beforeSwap via BeforeSwapDelta.

0xac89b34bf4a834e152066265b53368a28f8668a8 First pool 25 Oct 2025View on explorer

ALooks safeRegistered, verified, immutable

Pools

Dynamic-fee pools

Last new pool

12mo

Code size

438 B

What it can do

Runs code on every swap

Its code executes inside each trade in pools that use it.

Can take tokens from swaps

It can take or add tokens during a swap. Fees, burns and custom curves work this way, and so do scams.

Gates who can add liquidity

It checks every deposit before it goes in.

Runs at pool creation

It runs when a pool is created, often to lock in that pool’s settings.

Handles donations to LPs

It runs when someone donates tokens to the pool’s LPs.

Safety report

Automated checks, not an audit

✓Not upgradeableNo proxy pattern found: the code is fixed.

✓No owner foundNo owner() function: nobody has an admin switch (as far as the standard check goes).

✓Listed in Uniswap’s hook registryRegistered with Uniswap Labs (a listing, not a security review).

✓Source code publishedThe code on the block explorer matches what's deployed (contract: EulerSwap).

iCan change swap amountsIt has a ReturnDelta permission. Normal for fees and burns, but also how fake-quote hooks steal.

?No audit linkedAutomated checks only.

Pools using this hook

1 total

PairCreatedFeePool ID

WETH / USDC 12mo 0.29% 0xe4d7…527d Tx ↗