Launching on BNB Chain (Flap)
A bonding-curve launchpad on BNB Chain: no contract, one signature, no launch fee, a tax that pays your wallet, and PancakeSwap after graduation.
Flap is a bonding-curve launchpad on BNB Chain (chain id 56). A Flap launch is the BNB cousin of a pump.fun or Pons launch: there's no contract to write, compile, or audit, because the Flap Portal deploys the token and puts it on a bonding curve in a single transaction that you sign in your wallet. Pick the BNB Flap memecoin preset in the Token Launcher, or say "launch it on Flap" at any point.
What you get
| Flap launchpad | Classic ERC-20 on BNB Chain | |
|---|---|---|
| Contract | None, the Portal deploys it | Generated, audited, deployed by you |
| Supply | Fixed at 1,000,000,000 | Your choice |
| Tradable | Immediately, on the curve, then on PancakeSwap after graduation (Modus keeps trading it through Flap) | When you create a pool |
| Quote asset | BNB, or USD1 | BNB |
| Tax recipients | 1–10 wallets by share (Split Vault) | the creator's wallet |
| Owner levers | Buy and sell tax only (1–10% each, set at launch) | Taxes, limits, blacklist, trading toggle |
| Launch fee | None | Gas only |
| Network | Mainnet only, real BNB | BNB Testnet first, then mainnet |
The flow
- Image: a Flap launch needs a token image. Attach one or have Modus generate it in the chat.
- Recap and confirm: name, symbol, description, socials, the buy and sell tax (1% each by default, permanent unless you shorten it), the quote asset (BNB unless you ask for USD1), and an optional dev buy in that asset.
- Launch: one wallet signature. Modus pins the metadata, finds the vanity address Flap requires, encodes the call, and opens the wallet card; if it doesn't know your address yet, a connect card comes first. A dev buy rides in the same transaction.
- Verify: the chat shows a status card with price and fully diluted value in BNB, BNB raised, progress toward graduation, and the tax.
- Trade: buy and sell from the same chat, on the curve and after graduation, when Flap routes the trade to the PancakeSwap pool for you. Buys are paid in BNB even for a USD1-quoted coin.
The curve, the tax, and graduation
Every Flap token starts on a constant-product bonding curve with virtual reserves, so the opening price is non-zero and buys push the price up. Flap takes a small curve fee on every trade (about 1%), and the token's own tax comes on top: every buy and sell pays the tax to the creator's wallet, and Flap pays Modus a small commission out of that tax for running the launch. Flap currently launches tax tokens only, so the minimum tax is 1% per side; if you want a no-tax token on BNB Chain, launch a classic ERC-20 instead.
If you want to share the tax, ask for a split: up to ten wallets with a percentage each. Modus then launches the token through Flap's Split Vault, the tax flows into the vault, and each recipient claims their share from it on flap.sh instead of receiving it automatically. Splits are available for BNB-quoted coins only. Without a split, all tax goes straight to the creator's wallet.
Once 80% of the supply has been bought, the token graduates: its liquidity moves to a PancakeSwap V2 pool and the curve closes. From then on the token trades on PancakeSwap; Modus still buys and sells it for you through Flap, and the status card links the pool.