EulerSwap

EthereumRegistered

A Uniswap v4 hook implementing a custom AMM curve backed by Euler Finance vaults. Each hook instance is a delegatecall proxy. In beforeSwap, it takes input tokens into an Euler vault, withdraws output tokens from another vault, enforces a custom curve invariant, and returns a BeforeSwapDelta to fully handle swap accounting — replacing standard CLAMM liquidity with vault-backed liquidity.

0x3a9138fbc36a6a04fa78d1f06f294777845d28a8 First pool 8 Sept 2025View on explorer

ALooks safeRegistered, verified, immutable

Pools

Dynamic-fee pools

Last new pool

14mo

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

bUSD0 / USD0 14mo 0.004% 0x7924…3a68 Tx ↗