Singleton
v3 deployed a contract per pool. v4 keeps every pool inside one PoolManager, so creating a pool and routing across several of them costs less gas.
Swap
Open the appSwap anywhere.
Buy and sell across Ethereum, Unichain, Base and 20+ more networks — zero app fee.
On Ethereum, Unichain, Base and 23+ networks. Zero app fee. Quotes here are a local demo — the button opens the real Uniswap app.
Modular infrastructure for surfacing, composing and integrating custom Uniswap hooks. Combine Hook Blocks. Deploy your custom hook. Initialize new pools, or integrate with your project.
Use Hookr
Build with Hookr
Hook Blocks
How each block worksHook Blocks
Composable pieces you tune per pool and remix into a hook of your own.
- Anti-SnipeCaps early buys and adds an LP fee in the first blocks.
- Dynamic feesFee scales with how far a swap moves the price.
- Auto BurnBurns a share of actual buy output.
- LP RewardsFee share streams to LPs.
- Arb recaptureKeeps arbitrage value with the pool instead of outside MEV bots.
Powered by
whatthehook.io
What The Hook - Buy/Sell BlockNewStops one trader buying and selling in the same block.
- Market GuardNewSwaps that stray from a live Chainlink price pay the pool's LPs a surcharge.
- Recovery reserveNewMoney a pool's owner sets aside in public view after launch, filled by anyone's top-ups, that pays back LPs or traders after a reviewed incident.
- Canonical Venue TokenNewA token that trades only on its own pool, for assets that must stay on one known venue.
- Hook Blocks MarketNewBuilders publish add-on blocks bonded in HOOKR, and every swap in a pool that installs one pays its usage fee.
- Tax + ConversionNewBuy and sell taxes, paid in the pool's quote.
- Creator royaltyNewA share of LP Rewards paid to a recipient you fix at launch.
- Revenue RouterNewShare your royalty among up to 8 payees, fixed at launch.
- Swap Reward MintNewPays traders a reward token for each swap, funded by a slice of the trade.
- Pay LaterNewBuyers pay a premium now for the right to buy at a fixed price later.
- Entry Ratio GuaranteeNewLPs can lock in their entry amounts, paid for out of their fees.
- Floor bidNewA treasury keeps a standing bid below the price.
- Vesting MilestoneNewLock a team allocation that vests after a cliff, then in a straight line.
- Zap Relay sourceNewRoutes a cut of every buy to a zap vault that buys another pool.
- Zap Relay targetNewOnly zaps from its source pools may buy, and anyone may sell.
- Limit ordersNewSet a price and escrow the trade. Once the pool gets there, anyone can fill it, you included.
- Best routeNewChecks Uniswap pools for the same trade and offers a better route only when it clearly beats this pool.
Revenue tokens
Tokenize a fee rightRevenue Tokens
NewCore
- Lock fee income, mint a revenue token
- Every swap in a tokenized pool pays holders
- Its own market at mint
- Drops: send any token to all holders
- The fee right comes back when the term ends
Add-ons
- Time shares: sell one day's income
- Compound: income back into the token's pool
Coming soon
- Income advance
- Automations
- Borrow against revenue tokens
Fee
- 0% on the Hookr hook, 5% of supply off it
- Hooks built
- Loading…
- Across Hookr's releases
- Pools initialized
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- Every launch's pools
- Value facilitated
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- Lifetime, through Hookr hooks
- Total value deposited
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- In Hookr pools · USD
- Total $HOOKR burned
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- Reading the stored figure
New pools
Read the docsNew in Hookr
What new pools add, each figure from the release's contracts.
- Multi-pool launchOne token opens in several pools at once, each on its own quote.
- Dev buy lockA creator's buy at launch keeps the pools' liquidity in place.
- LP Time-Lock BoostLock a full-range position for weeks to multiply its share of rewards.
- Owned rootsUse Hookr's hook with a saved hook of your own, or deploy a hook of your own.
- FeesBlock fees split with LPs, and arb recapture pays Hookr 25% and What The Hook up to 25%; the pool shares the rest.
- SDKTypeScript source that builds launch, swap and quote calls.
Uniswap ecosystem
Uniswap.orgAggregator Hooks are live
Uniswap v4 can now fill a swap from liquidity that lives outside Uniswap.
- External liquidity, as v4 poolsAggregator Hooks wrap liquidity from other venues and expose it as Uniswap v4 pools, so a router can fill one swap from several sources in a single transaction.
- Three chains on day oneEthereum mainnet, Base and Robinhood Chain. Hookr’s own pools run on Robinhood Chain, chain id 4663.
- Fees come back as UNI burnsTrades that fill through an external source pay protocol fees, and those fees are used to buy and burn UNI.
- Reachable two waysLive inside the Uniswap Web App for traders, and exposed through the Uniswap API for anything that routes swaps.
- VolatilePair HookShipped as the companion v4 hook for dynamic fee pricing on high-volume pairs such as ETH/USDC.
- What it changes for hook buildersThe aggregator hook is its own hook. A pool’s Hook Blocks keep running as before — what changes is how much liquidity a swap can draw from.
Select a token
Tokens by 24h volume
Who it's for
What you can do with Hookr
Pick your role to see where it starts.
Decoded Hook Blocks on each market, with the onchain receipt behind them.
Discover
Building on Hookr
All integrationsIntegrations
Teams and products building on Hookr, live and coming soon.
LiveWhat The HookRuns arb recapture on Hookr pools. Keeps arbitrage value with the pool instead of outside MEV bots.LiveStonkBrokersBattle, Strategy, Fractional 404 and Smart LP: their official v4 hooks, listed and traded on Hookr.LiveUniswapThe Uniswap app and API can route swaps through pools on Hookr's default root.
On X
Community Love
Grail.eth@graildotethMy favorite project on RH @Hookrfun is crushing it. Happy ATH day for the project.
@Hookrfun leveraged LP pool hooks bring something very unique to the table. Expecting this to only be the first of many unique and novel innovations brought to DeFi.
Defi will never be the same ONCE these hooks start to be used at scale.
niko@saintnikowe love Hookr
Uniswap@Uniswap@Hookrfun @whatthehookv4 *Hooks mentioned*
Lyvo@LyvoCrypto$HOOKR might be one of the most interesting infra plays on Robinhood Chain right now.
@hookrfun isn’t another generic launchpad.
What The Hook@whatthehookv4Our integration with @Hookrfun is now live.
Anyone using HOOKR's UI can enable our module and get additional rewards from arbitrage value retention.
Building with @NodarJ is an absolute banger of an experience.
YEdu@yashascoreRH chain will need a default place to create, read and reuse those venues.
Hookr is built as that place
DineroDom@DineroDom0So @Hookrfun has just been an absolute partnership powerhouse. Clearly setting itself as the distribution layer for V4 hooks.
Dorito@munchindoritosDo your research - look into the founder and what he has built within the Ethereum space since 2017 @NodarJ
Of course, it needs traction and adoption - but I feel confident in this bet
Theo@0xdetweilerwe have some DeFi OGs saying $hookr @Hookrfun is one of the most interesting new protocols to come out on RH chain.
Kryptic_u@Land_CollextorProgrammable markets. Reusable financial logic. A marketplace where builders can publish hooks and participate in the value when other markets adopt them.
Zufus.eth@TheZufusHookr isn’t another launchpad with V4 hooks bolted on.
Gammichan@gammichankeep up the good work, you being the dev was also a big part of my thesis, you've been very professional so far 👍
CRP@ChainlinkPAlways been a fan of @NodarJ's work over the years.
I can see this developing as a settlement layer under all these launchpads.
USB@a_seven_lifeHook Analyzer is a seriously good update
Being able to paste a hook / pool / token and immediately get readable behavior + risk + scoring is insanely useful. Makes custom hooks way less opaque
Chill@ChillTRDEvery liquidity pool on every launchpad will have a V4 hook attached. Hookr is looking very well positioned to dominate here.
Mazino@MazinotrenchesAll thriving hooks on Robinhood/EVM are bound to be part of $HOOKR ecosystem.
Bearjesus@thebearjesusI think $HOOKR is the equivalent of $PONS.
PONS made launching tokens simple. Hookr is doing the same for custom V4 Uniswap markets.
Build, publish, reuse and earn royalties.
Wyckoff3.0@Wyckoff3_0I dont think people have any clue what @NodarJ is cooking here. Hands down the coolest things happening in DeFi, all on Hookr.
Miyamoto@iruletrenchesI like $HOOKR on @Uniswap a lot and have been playing around with hooks on it
I could write a long form thread on why I think it’s undervalued, but the article from the founder @NodarJ, really covers it all
Bill- Late Night Onchain@lateniteonchainVery interesting convo filed with ton of knowledge
Highly recommend going back and watching the whole thing
@NodarJ built different
Markets
| Pool | Fee | Hook Blocks | All-time volume | 24h | Total APR |
|---|
Reading the indexed cohort…
Learn
Read the docsUniswap v4, on one screen.
Four changes under the hood, and the ten points where a hook actually runs.
Flash accounting
Each action records a delta instead of moving tokens. Only the net balance at the end of the lock settles, which is what makes multi-hop swaps cheap.
Hooks
An optional contract attached to a pool when it is initialized. One hook can serve many pools, and it cannot be added, swapped or removed later.
Dynamic fees
Fees stop being three fixed tiers. A hook can price a swap from a few basis points upward, and re-price per block or per trade.
Where a hook runs
- InitbeforeInitialize
- InitafterInitialize
- LiquiditybeforeAddLiquidity
- LiquidityafterAddLiquidity
- LiquiditybeforeRemoveLiquidity
- LiquidityafterRemoveLiquidity
- SwapbeforeSwap
- SwapafterSwap
- DonatebeforeDonate
- DonateafterDonate
A hook declares these through getHookPermissions, and the same flags are encoded in the low bits of its address — which is why a hook has to be deployed to a mined CREATE2 address. Four extra permissions let it adjust balances directly: the swap, add-liquidity and remove-liquidity return deltas. Declare a permission the address does not carry and the deploy reverts; carry one and never declare it and the PoolManager silently never calls it.
Questions
Questions
What is Hookr.fun?
Modular infrastructure for surfacing, composing and integrating custom Uniswap hooks. Combine Hook Blocks. Deploy your custom hook. Initialize new pools, or integrate with your project. On Robinhood Chain 4663, a launch opens a token in up to 8 Uniswap v4 pools at once, each running the Hook Blocks its creator picks, on Hookr's shared hook or on a hook of your own. Every block is readable before trading.
Which Hook Blocks can a pool run?
Anti-Snipe: Caps early buys and adds an LP fee in the first blocks. Dynamic fees: Fee scales with how far a swap moves the price. Auto Burn: Burns a share of actual buy output. LP Rewards: Fee share streams to LPs. Arb recapture: Keeps arbitrage value with the pool instead of outside MEV bots. Tax + Conversion: Buy and sell taxes, paid in the pool's quote. Buy/Sell Block: Stops one trader buying and selling in the same block. Revenue Router: Share your royalty among up to 8 payees, fixed at launch. On new pools a creator sets each block's parameters at launch and remixes the blocks into a hook of their own, and arb recapture is live on Hookr's hook.
Where do Hookr tokens trade?
A new token opens in up to 8 Hookr pools at once, one per quote asset, each with the Hook Blocks its creator chose fixed in at launch. Each pool trades through the Hookr router or Uniswap's Universal Router, the split router can split one trade across a launch's pools, and tokens launched on earlier releases keep trading in their original pools.
How does the dev buy lock work?
A creator can buy their own token inside the launch, holding at most 5% of the supply afterwards. The pools' liquidity then stays locked for 7 days by default, up to 365 days, while the bought tokens stay free and fees stay collectable.
What does Hookr take on a new pool?
A share of the block fees, 20% by default and up to 50%, never the base LP fee, and 25% of each arb recapture's profit on a pool that runs it. A Hookr token's pool that pays neither pays a minimum instead, currently 0.1% of each swap.
Can I run a hook of my own?
Yes: use Hookr's shared hook with a saved hook of your own blocks, or deploy a Hookr hook at an address of your own. Both cost gas only, with no Hookr fee to deploy, and either way your pools keep Hookr's launcher, router and treasury.
Is Hookr audited?
Hookr's contracts are unaudited. They have been adversarially reviewed, not externally audited.
Can I attach a hook to a token that already trades?
Yes. Create pool opens up to 8 Hookr pools for a token that already exists, each with $10 over the full range from the creator's own token and quote, and it takes no power over the token. A v4 pool's hook is fixed when the pool is created, so the token's other pools keep running as they are.
Can a pool hold a tokenized stock?
Yes. Any asset with code on Robinhood Chain can be the subject or the quote of a hooked pool, including Robinhood's tokenized stocks. The pool inherits the stock's pause registry, so a pause of that token halts the pool. Most creators put the stock on the quote side and keep auto burn off it, because burning a stock destroys a claim on a real share.
What is the official Hookr X (Twitter) account?
@hookrfun, https://x.com/hookrfun. Verify links before connecting a wallet; an address plus its chain, not a ticker or a handle, is a token's identity.
What is the $Uv4 contract address?
The source-listed $Uv4 project token is 0x3788Ec3A27b36d8B792f84EE53800F82F0A4a099 on Robinhood Chain 4663. Always verify the full address before trading. Its listed market is a hookless Uniswap v4 pool. The app verifies the token's launchpad relation at a pinned block before showing project-token market or trade UI; an unavailable result is never inferred as either outcome.
0x3788Ec3A27b36d8B792f84EE53800F82F0A4a099