UniHooks

NFTEngineHook

EthereumRegistered

A Uniswap v4 hook for the NFTEngine platform that gates pool initialization and liquidity additions to factory-authorized callers. In afterSwap, it takes a graduated fee (starting at 95% for buys, decaying ~1% per 5 blocks to a 10% floor; flat 10% for sells), swaps token fees to ETH, and distributes 80% to the NFT collection engine and 20% to a configurable fee recipient.

0x236f4cd6b3a7ff44e50fc3894e0bf165fcde68c4 First pool 5 Oct 2025View on explorer
ALooks safeRegistered, verified, immutable
Pools
2
Dynamic-fee pools
0
Last new pool
13mo
Code size
6,927 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: NFTEngineHook).
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

2 total
PairCreatedFeePool ID
ETH / OPEPENENG 13mo 0.00% 0x7016…8f5c Tx ↗
ETH / TSTENG 13mo 0.00% 0xd628…6d76 Tx ↗