ConstantSumCurve

BNBRegistered

ConstantSumCurve is a Uniswap v4 hook on BNB Chain. A constant-sum (1:1) AMM hook that implements hook-owned liquidity and a fully custom swap curve via beforeSwap return delta. Both exact-input and exact-output swaps execute at a fixed 1:1 exchange rate, bypassing Uniswap v4's native AMM math entirely. Standard v4 liquidity addition is blocked via revert.

Contract name: ConstantSumCurve

0xcdc2f132b008b25fc0748a4c14157f7a8e6e4888 First pool 5 Sept 2025View on explorer

Launch a pool with this hook

ALooks safeRegistered, verified, immutable, no admin

Pools

Dynamic-fee pools

Last new pool

14mo

Code size

4,807 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.

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).

!In Uniswap’s hook registry, not tradeable in Uniswap’s app yetRegistered with Uniswap Labs (a listing, not a security review). It runs code on swaps, so Uniswap’s app only routes it once Uniswap Labs approves it, and it isn’t approved yet. Adding liquidity still works, and other apps can trade it.Registry Routing rules

✓Source code publishedThe code on the block explorer matches what's deployed (contract: ConstantSumCurve).

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

USDC / USDC 14mo 0.01% 0x3c21…af9e Tx ↗