Nucleus

Ethereum

Runs code on every swap. Can take tokens from swaps. Can block LP withdrawals. Gates who can add liquidity. Runs at pool creation.

0x443add53b98360742fa8ba184757b7c87aa82acc First pool 20 Oct 2026View on explorer

CBe carefulNot in Uniswap’s hook registry · Can take tokens out of swaps

Pools

Dynamic-fee pools

Last new pool

16d

Code size

17,376 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.

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.

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).

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

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

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 / NOOK 16d 0.00% 0x3995…9010 Tx ↗