0x2991…a5c7

Base

This is a Uniswap v4 hook on Base. Runs code on every swap. Can take tokens from swaps. Sets its own swap fee. Takes a cut when LPs withdraw. Adjusts deposit amounts. Runs at pool creation.

0x2991449b6682a8106957f037fa2dfa542ddba5c7 First pool 26 Aug 2026View on explorer

CBe carefulNot in Uniswap’s hook registry · Has an admin who can change it · Can take tokens out of swaps

5 identical copies

Pools

Dynamic-fee pools

Last new pool

2mo

Code size

10,097 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.

Sets its own swap fee

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

Takes a cut when LPs withdraw

It can change what LPs get back when they remove liquidity.

Adjusts deposit amounts

It can adjust token amounts when liquidity is added.

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 0x8039…c0ab. That account can usually change fees, limits or allowlists after you trade.

!Not in Uniswap’s hook registry, not tradeable in Uniswap’s app yetUnregistered hooks get less scrutiny. Most scam hooks are unregistered. It runs code on swaps, so Uniswap’s app only routes it once Uniswap Labs approves it, and it isn’t approved yet. Adding liquidity still works, and other apps can trade it.Registry Routing rules

?Source not checked yetThe block explorer didn’t answer in time. Reload in a moment.

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.

Pools using this hook

1 total

PairCreatedFeePool ID

ETH / NVDAc 2mo dynamic 0xc1dd…e0a8 Tx ↗