0x4439…bfff

Ethereum

Runs code on every swap. Can take tokens from swaps. Can block LP withdrawals. Takes a cut when LPs withdraw. Gates who can add liquidity. Adjusts deposit amounts. Runs at pool creation. Handles donations to LPs.

0x4439607e18561374f67135cb438c2fedbe94bfff First pool 9 Oct 2026View on explorer

DHigh riskNot in Uniswap’s hook registry · Can change swap amounts and isn’t registered · Upgradeable proxy: the owner can swap its code

8 identical copies

Pools

Dynamic-fee pools

Last new pool

28d

Code size

135 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.

Can block LP withdrawals

It runs before liquidity is removed, so it can delay or refuse LP exits.

Takes a cut when LPs withdraw

It can change what LPs get back when they remove liquidity.

Gates who can add liquidity

It checks every deposit before it goes in.

Adjusts deposit amounts

It can adjust token amounts when liquidity is added.

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

!Upgradeable proxyThe owner can replace the code (currently 0xac70…f032). Rules can change after you trade.

!Not in Uniswap’s hook registryUnregistered hooks get less scrutiny. Most scam hooks are unregistered.

?Source verification not checked yetComing soon for unregistered hooks.

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

ETH / 0x0d99…9dbd 28d 0.01% 0xcb29…bd31 Tx ↗