0xf552…1000

Base

This is a Uniswap v4 hook on Base. Sets its own swap fee. Runs at pool creation.

0xf5521c33915995806115bddb668513b08e4a1000 First pool 17 Sept 2026View on explorer

CBe carefulNot in Uniswap’s hook registry · Source code not published · Has an admin who can change it

2 identical copies

Pools

Dynamic-fee pools

Last new pool

51d

Code size

3,007 B

What it can do

Sets its own swap fee

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

Runs at pool creation

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

Safety report

Automated checks, not an audit

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

!Has an adminowner() is 0x52fa…855f. That account can usually change fees, limits or allowlists after you trade.

!Not in Uniswap’s hook registry, tradeable in Uniswap’s app (except dynamic-fee pools)Unregistered hooks get less scrutiny. Most scam hooks are unregistered. It doesn’t touch swaps, so Uniswap’s app routes it automatically, but not its dynamic-fee pools.

!Source code not publishedNobody can read what this hook actually does. Treat it as a black box.

?No audit linkedAutomated checks only.

Pools using this hook

1 total

PairCreatedFeePool ID

USAD / USDC 51d dynamic 0x2a45…e1e9 Tx ↗