0x889e…20cc

Ethereum

Runs code on every swap. Can take tokens from swaps. Runs at pool creation.

0x889e76f2219fde464f450472dd56c9bffa0220cc First pool 18 Oct 2026View on explorer

CBe carefulNot in Uniswap’s hook registry · Can change swap amounts and isn’t registered

Pools

Dynamic-fee pools

Last new pool

19d

Code size

7,695 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.

Runs at pool creation

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

Automated checks, not an audit

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

!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.

1 total

PairCreatedFeePool ID

ETH / 0x6139…7a43 19d 0.00% 0x87bf…37e7 Tx ↗