UniswapV4Hook

EthereumRegistered

A Uniswap v4 hook with a 1.2% fee on buys and sells. Buy fees accumulate ETH in a burn pot for buyback-and-burn every 20 swaps; sell fees queue tokens for burning. Sells are blocked in the same block as a buyback. Exact-output swaps always revert. Only one liquidity addition is permitted per token. Additionally, afterSwap has an allowlist: once activated by any caller via superTokens(), sells are blocked for all addresses not pre-approved by the deployer.

0xb65fd2a1ff6fd0262baeb64f1e105a76bd36a8cc First pool 16 May 2026View on explorer

ALooks safeRegistered, verified, immutable

Pools

Dynamic-fee pools

Last new pool

3mo

Code size

8,668 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.

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.

Safety report

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).

✓Listed in Uniswap’s hook registryRegistered with Uniswap Labs (a listing, not a security review).

✓Source code publishedThe code on the block explorer matches what's deployed (contract: UniswapV4Hook).

iCan change swap amountsIt has a ReturnDelta permission. Normal for fees and burns, but also how fake-quote hooks steal.

iRestricted swapsSwap access: temporal. Not everyone can trade every pool.

?No audit linkedAutomated checks only.

Pools using this hook

2 total

PairCreatedFeePool ID

ETH / EVIL 3mo 0.30% 0x36bb…c2f1 Tx ↗

ETH / NIHILITY 5mo 0.30% 0xa21f…e43f Tx ↗