Unnamed hook

Arbitrum

Runs on every swap. Can change what you receive. Sets its own fee. Can block withdrawals. Controls who can add liquidity. Checks new pools.

0xd2e31898f9244477cf6f06cf84b829074e641acc First pool 21 Sept 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

45d

Code size

14,835 B

What it can do

Runs on every swap

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

Can change what you receive

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

Sets its own fee

Pools using it let the hook choose the swap fee instead of a fixed tier.

Can block withdrawals

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

Controls who can add liquidity

It checks every deposit before it goes in.

Checks new pools

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

0x13a7…72b3 / 0x7acd…44ca 45d dynamic 0x0a40…4751 Creation tx