flETHHooks

ArbitrumRegistered

A constant-sum 1:1 custom-curve hook for ETH/flETH pools. In beforeSwap, it takes the full input from the PoolManager, wraps or unwraps ETH via the flETH contract, and settles the output back — bypassing concentrated liquidity entirely. Direct liquidity addition is blocked; only zero-fee ETH/flETH pools are permitted.

0x2a8d203ebc8e165b4d94b18131365f4d1c19e888 First pool 14 Sept 2026View on explorer

ALooks safeRegistered, verified, immutable

Pools

Dynamic-fee pools

Last new pool

52d

Code size

4,962 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: flETHHooks).

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 / flETH 52d 0.00% 0x4c7c…5600 Tx ↗