UNI20Hook

EthereumRegistered

A BRC-20-style inscription protocol layered on Uniswap v4. Users embed DEPLOY, MINT, or TRANSFER operations in swap hookData; MINT and DEPLOY ops extract ETH fees from the swap via BeforeSwapDelta and poolManager.take(), minting ERC-1155 tokens to the swapper's EOA. Swaps without hookData pass through normally.

0xdd3beef2b5993f42532021d0654fbfef2d3280cc First pool 17 May 2026View on explorer

ALooks safeRegistered, verified, immutable

Pools

Dynamic-fee pools

Last new pool

5mo

Code size

15,224 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.

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: UNI20Hook).

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

6 total

PairCreatedFeePool ID

W / W 5mo 1.00% 0x8353…8fb5 Tx ↗

AAA / BBB 5mo 1.00% 0x11a7…9f64 Tx ↗

AAA / BBB 5mo 1.00% 0x2cb1…0be3 Tx ↗

BBB / AAA 5mo 1.00% 0x8d3d…88c7 Tx ↗

AAA / BBB 5mo 1.00% 0xe2c3…418c Tx ↗

ETH / FUEL 5mo 1.00% 0x1072…f7ea Tx ↗