No registry lists this hook. Unlisted found it in the PoolManager's Initialize events, first pool 52 days ago (2026-09-07 20:46 UTC).
2Pools
3Swaps, 7 days
$2Volume, 7 days
52 days agoFirst pool
What it can do to your swap
Runs code before your swap and can block itThe hook is called before every swap. It can revert, which makes your swap fail.
Runs code after your swap and can block itThe hook is called after every swap. It can revert, which undoes your swap.
Can block people from adding liquidityCalled before each deposit into the pool.
Runs code when a pool is createdCalled once, when someone creates a pool with this hook.
Can charge a different fee on each swapThe pool's LP fee is dynamic: the hook sets it, swap by swap.
Read from the hook address: flag bits beforeInitialize, beforeAddLiquidity, beforeSwap, afterSwap. Flags glossary.
Last test swap
A quote for a tiny exact-in swap each way through USDG / PAIR with Uniswap's V4 Quoter, compared with the pool's mid-price minus its 0.00% LP fee. It is an eth_call: nothing is signed or spent. Probed 3 days ago, every hour.