Launchpad hook that charges a fee on the numeraire leg via hook deltas (bypassing LP fee, which is overridden to zero). The fee decays linearly from a configurable start (up to 80%) to a steady-state end (default 1%) over a configurable window (default 10 s) to deter opening-block snipers; exactOut swaps revert during this window. Liquidity additions are vault-only; principal removals are permanently locked. Optionally gates buys to NFT holders and locks sells for a presale period.
0x34981f91a8039610c8451040a6ffa09de38deafcFirst pool 14 Sept 2026·View on explorer
ALooks safeRegistered, verified, immutable
Pools
13
Dynamic-fee pools
13
Last new pool
50d
Code size
11,902 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.
Can block LP withdrawals
It runs before liquidity is removed, so it can delay or refuse LP exits.
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.
Handles donations to LPs
It runs when someone donates tokens to the pool’s LPs.
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: V2Hook).
iCan change swap amountsIt has a ReturnDelta permission. Normal for fees and burns, but also how fake-quote hooks steal.
iRestricted swapsSwap access: other. Not everyone can trade every pool.