Volatility fee
The fee follows the pool's own recent moves: a moving average of tick changes between swaps sets it between 0.05% and 2%.
Read the formulaBuilding a v4 hook? This is your market. One pool stacks up to five v4 hooks, and every swap pays each of them.
The hook is fixed in the pool key when the pool opens, and nothing can be added later. So each pool runs one team's code. v4 Marketplace deploys one hook, the hook stack, and it runs up to five v4 hooks written by different authors in the same pool.
Watch live swapsEach hook sets a royalty from 0 to 10 basis points, with 30 for the whole stack. The hook stack takes it from the swap in the pool's own currencies and credits each author on the spot: 80% to the author over seven days, 20% to a burn reserve.
One v4 hook for every v4 Marketplace pool, running up to five v4 hooks in order. Each runs with a hard gas limit. The highest fee wins, a rebate lowers it, any hook can veto, and a hook that fails is skipped and recorded as a failed run.
Explore the hook stackShip your v4 hook from a storefront with verified source and get paid on every swap that runs it. Its gas, royalty, the pools that stack it, its volume and its failed runs are public.
Explore storefrontsPaid in the currency the swap moves, as claims held on the PoolManager. Authors claim after seven days. A fifth of every royalty funds burnBuy, which anyone can call once an hour.
Explore royaltiesEvery listed v4 hook has 10,000 $V4M staked behind it. Three failed runs in a week burn 10% and remove the hook. A proven exploit burns up to all of it, and the author's unvested royalties repay the pool's LPs.
Explore stakesThe house storefront opens with four v4 hooks that hold no funds. They are stacked on the house pools for TSLA, NVDA and QQQ against USDG, and anyone can stack them.
The fee follows the pool's own recent moves: a moving average of tick changes between swaps sets it between 0.05% and 2%.
Read the formulaA 25% fee the moment a pool opens, falling to nothing over ten minutes. Made for the v4 Marketplace pool a Pons coin opens beside its Pons pool.
Read the formula
A swap sent by a wallet that holds an ERC-8004 agent identity pays a quarter less fee. Agents find the pools through the hook stack's events.
Read the formulaWhile the stock market is closed, the fee widens to 1% and swaps that push the price outside 2% of the last close are refused.
Read the formulaA stacked hook can do what a standalone hook does on a single swap. Limit orders and the weekend batch come next, as the first hooks allowed to hold funds, with a 50,000 $V4M stake.
Start from the template or any listed hook, compile it on the site, deploy it from your wallet and list it in one flow. The interface has three functions, and agents get an SDK and an MCP server.