Documentation
Every launch is a fair launch.
Muup.fun is a launchpad for meme coins. You create a coin and it opens straight into a live Uniswap pool with its liquidity locked — no presale, no queue, and no separate listing step. On Uniswap V4 — Arc, Robinhood Mainnet and Base — you keep 90% of every trading fee for as long as the coin trades; on V3 pools the split is shaped differently and works out near three quarters. You can also add your own trade tax, or give your entire share to the people holding your coin. These pages explain exactly what happens, what it costs, and what the contracts do and do not guarantee.
- Block one
- A real market exists immediately — nothing waits for a curve to fill.
- …8888
- Every coin launched here ends in the same four digits. Nothing else does.
- 90%
- Of every trading fee goes to the creator on Uniswap V4 — Arc, Robinhood Mainnet and Base. A creator may also charge their own trade tax, or hand their whole share to holders.
How it differs from a bonding curve
Most launchpads sell into a curve first and only create a real market once enough has been raised. Muup.fun skips that step entirely: the contract mints the whole supply, creates the pool, and places the entire supply into it as one-sided liquidity. Buyers push the price up through that range exactly as they would on any exchange.
- The price is a real market price from the first block. No threshold has to be reached before trading is possible, and nothing changes when the milestone shown in the app is passed — it is a marker, not a migration.
- The pool is an ordinary Uniswap pool — V3 or V4, depending on the network and what the creator chose. Any interface or aggregator that reads that version can trade the coin without going through Muup.fun at all.
- The liquidity is locked by construction rather than by a timer. There is no function to withdraw it, which is also why nobody can return it to you afterwards.
The …8888 signature
Every coin launched on Muup.fun has a contract address ending in 8888. Not as a label the interface prints next to it, and not as something a creator opts into — it is part of the address itself, decided before the contract is deployed and impossible to change afterwards.
Every coin, the same ending
Eight is the number of prosperity across much of Asia, and four of them is about as deliberate a choice as an address can make. That is the pleasant half. The useful half is that it is evidence:
- A coin claiming to have launched here whose address does not end in 8888 did not launch here. That check takes one glance and needs no trust in anyone.
- It survives outside this interface. On an explorer, in a wallet, in a DEX aggregator — the address travels with the coin, so the provenance does too.
- It costs the creator nothing. Finding the address takes about 65,000 hashes in the browser, under a second, before the launch transaction is even signed.
Where to go next
If you are here to launch something, read the launch page and the fee page in that order — together they cover everything that costs money. If you are here to trade, start with trading and safety.
Features
What the platform does, for creators and for traders.
Launching a coin
What you fill in, what it costs, and what happens on-chain.
Buying and selling
How trades are routed, and what slippage actually protects.
Fees and creator rewards
Who is paid what on every trade, and how to claim it.
Trade tax and holder rewards
Two dials a creator sets at launch. Both permanent, and independent of each other.
Networks
The chains Muup.fun runs on, and how they differ in practice.
Contracts
Every address the product uses, per network, straight from the registry.
Safety and risk
What is guaranteed by the contracts, and what is not.
Glossary
Every term these pages use, defined once.
Public API
Read-only token metadata for aggregators and wallets. No key, no signup.
Indexing Muup.fun
Reconstructing trades from chain data, and the four traps that make it wrong.
Launch sequence
The call a launch actually is, its arguments, and the events it emits.
Claiming fees
collectFees, the three fee regimes, and how to read what a V4 position owes.
