By What Four.meme is
Four.meme is the leading memecoin launchpad on BNB Chain. Instead of writing and deploying a contract, a creator fills in a name, ticker, image and category, and the token is created by Four.meme's TokenManager2 contract at 0x5c952063c7fc8610FFDB798152D69F0B9550762b.
Every Four.meme token has the same fixed supply of 1,000,000,000 and starts trading on a bonding curve run by TokenManager2, not on a DEX pool.
How the bonding curve works
On a bonding curve, the contract itself sells and buys the token, and the price is set by a formula based on how much has already been bought. Early buys get more tokens per BNB, and the price rises as BNB flows in. There is no separate liquidity provider at this stage.
This is why the order of buys at launch matters: each buy moves the price for the next one. A buy placed later in the same block gets fewer tokens than the same buy placed earlier.
Graduation to PancakeSwap
When the curve has raised about 18 BNB, according to Four.meme's public config, the token graduates and its liquidity moves to PancakeSwap. After that it trades like any other PancakeSwap token.
For tools this changes the route. In TokenBundle's Terminal, Four.meme tokens still on the curve are bought and sold through TokenManager2, while graduated and other tokens are routed through the 0x aggregator across PancakeSwap and the other BNB Chain DEXes.
Four.meme fees
| Fee | Amount | How it is charged |
|---|---|---|
| Four.meme launch fee | 0 today | No separate charge to create the token |
| Four.meme trading fee | 1% | Taken out of each buy amount |
| TokenBundle fee (bundled launch) | 2% | 2% of dev buy plus all bundle buys, last transaction in the bundle |
| TokenBundle fee (Terminal trades) | 1% | On every Terminal buy and sell - curve tokens and graduated ones |
The signed launch: createToken(createArg, signature)
A Four.meme token is created by calling createToken(createArg, signature) on TokenManager2. Neither argument is something you build yourself. The creator wallet first signs in to Four.meme with a message of the form "You are sign in Meme" plus a nonce, then Four.meme's own API issues the createArg and the signature.
The signature is bound to that wallet. A createArg replayed from another wallet reverts with "SignatureVerifier: invalid signature". It is also single-use and time-limited, so a launch that does not go out in time needs a fresh signed launch.
The dev buy and the ffff addresses
- The dev buy happens inside createToken itself, so the creator buys in the same transaction that creates the token.
- The BNB sent with createToken (msg.value) must be exactly the amount signed into createArg.
- Token addresses are created with CREATE2 and end in ffff, so the address is known before anything is sent.
- The token image is uploaded to Four.meme as part of preparing the launch.
What this means for a bundled launch
Because the address is predictable and the dev buy is inside createToken, other wallets can buy in the very same block, right after creation, if everything is sent as one builder bundle. TokenBundle dry-runs createToken and every buy in order before sending, which yields the token address and each wallet's exact token amount, then sends the bundle to 48 Club and BlockRazor.
Each buy then gets a 5% floor based on the simulated token amount. TokenBundle's 2% fee goes last, from the dev wallet, so it is only paid if the whole launch lands. If no builder includes the bundle within its window, nothing is spent, but the signed launch cannot be reused: Four.meme's signature is single-use and time-limited, so the launch is started again with a fresh one.
The bonding curve also explains why the bundle order is fixed in advance. The dev buy inside createToken comes first and gets the earliest price, then each bundle wallet buys in turn, each one moving the curve for the next. Simulating that exact order is the only way to know each wallet's token amount before the bundle is sent.
FAQ
- What is the total supply of a Four.meme token? Every Four.meme token has a fixed supply of 1,000,000,000.
- When does a Four.meme token graduate? At about 18 BNB raised on the bonding curve, per Four.meme's public config, after which it moves to PancakeSwap.
- Does Four.meme charge to create a token? The launch fee is 0 today. Its 1% trading fee is taken out of each buy amount.
- Why can't I reuse a createArg from another wallet? The signature is bound to the wallet that signed in, so a replay from any other wallet reverts.
- Why do Four.meme token addresses end in ffff? They are created with CREATE2, so each address follows that pattern and is known before anything is sent.
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