OneTimeLaunchHookTemplate

EthereumRegistered

A one-time-launch hook that allows pool initialization and liquidity seeding only once per token. In afterSwap, restricts token sells (non-zeroForOne swaps) to a deployer-controlled allowlist when enabled, while token buys remain unrestricted.

0xe39ff20520e129c42afa6ef671c4eb06eb1c6840 First pool 10 May 2026View on explorer

ALooks safeRegistered, verified, immutable

Pools

Dynamic-fee pools

Last new pool

5mo

Code size

4,296 B

What it can do

Runs code on every swap

Its code executes inside each trade in pools that use it.

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: OneTimeLaunchHookTemplate).

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

?No audit linkedAutomated checks only.

Pools using this hook

3 total

PairCreatedFeePool ID

ETH / SPAC3 5mo 0.30% 0xe0c0…1a6d Tx ↗

ETH / uOS 5mo 0.30% 0xbbb8…6008 Tx ↗

ETH / vit4 5mo 0.30% 0x309e…06d4 Tx ↗