By What a BNB Chain launch bundler does
A launch bundler puts the launch transaction and the opening buys from several wallets into one ordered package, so they execute together in the same block. On BNB Chain (chain id 56) that package is a builder bundle: it lands whole, in order, in one block, or it does not land at all.
TokenBundle supports three BNB Chain workflows: launching a new token on Four.meme with bundled wallet buys, deploying your own BEP-20 and opening trading on PancakeSwap V2 with a Custom Bundle, and trading any token across wallets afterwards in the Terminal.
Why bundling matters on BSC
BNB Chain has a public mempool and produces blocks roughly every 0.45 seconds. A launch sent as separate public transactions is visible before it confirms, and other traders can react to it. Splitting a launch across several transactions also means some can succeed while others fail or land in later blocks at different prices.
BSC also has a proposer-builder (PBS) block-builder market. Builders such as 48 Club (Puissant) and BlockRazor build most BSC blocks and accept bundles through eth_sendBundle. A bundle is sent privately to those builders instead of the public mempool, and it is all-or-nothing.
The three BNB workflows in TokenBundle
| Workflow | What it does | Where the token trades |
|---|---|---|
| Four.meme Launch | Creates the token through Four.meme's signed createToken and bundles up to 30 wallet buys in the same block | Four.meme bonding curve, then PancakeSwap after graduation |
| Deploy Token + Custom Bundle | Deploys a Clog or Standard Tax BEP-20, then opens trading and buys from 1-100 wallets in one bundle | PancakeSwap V2 against WBNB |
| Terminal | Buys and sells across your wallets with PNL, each trade sent as a private one-transaction bundle | Four.meme curve or PancakeSwap V2 |
How a bundle is checked before it is sent
Neither 48 Club nor BlockRazor implements eth_callBundle, so a builder will not dry-run a bundle for you. TokenBundle instead simulates the signed transactions in order with eth_simulateV1 on a normal RPC, against current chain state, before anything is sent.
That simulation is what lets the tool size each buy exactly. For a Four.meme launch it also returns the new token address and each wallet's exact token amount, which are then used to set a 5% floor on every buy.
Sending to 48 Club and BlockRazor
- The same bundle goes to both 48 Club and BlockRazor; neither requires an API key.
- Each bundle is valid for about 40 blocks, roughly 18 seconds on BNB Chain.
- Bundle transactions pay at least 1 gwei priority fee, because builders rank bundles by priority fee. Normal network gas is around 0.05 gwei.
- If the bundle is not included within its window, nothing in it is spent and the wallets' nonces stay free. The Custom Bundle service fee is paid once from the Master before the bundle is sent, and a retry does not charge it again.
Fees on BNB Chain
Four.meme launches carry a 2% TokenBundle fee on the dev buy plus all bundle buys. It is the last transaction in the bundle, sent from the dev wallet, so it is only paid if the launch lands.
Custom Bundle launches on PancakeSwap use fee tiers paid once from the Master wallet. Lower tiers add TokenBundle service wallets that buy in the same bundle after yours. The tiers are the USD equivalent of the Ethereum tiers.
| Custom Bundle tier | Fee from Master | Service wallets |
|---|---|---|
| Tip tier | 0.9 BNB + 2.6 BNB tip | 0 |
| Tier 1 | 0.5 BNB | 1 |
| Tier 2 (recommended) | 0.35 BNB | 2 |
| Tier 3 | 0.035 BNB | 3 |
Choosing the right workflow
If you want a memecoin with a fixed 1,000,000,000 supply on a bonding curve and no contract to write, Four.meme is the simpler path. If you want your own contract with taxes, max transaction and max wallet limits, or an anti-snipe whitelist window, deploy a BEP-20 and launch it with a Custom Bundle on PancakeSwap.
FAQ
- What is a BNB Chain token launch bundler? It is a tool that packages the launch transaction and several wallets' buys into one builder bundle, so they execute together, in order, in a single block or not at all.
- Which builders does TokenBundle send BNB bundles to? It sends the same bundle to 48 Club and BlockRazor, which build most BSC blocks and accept eth_sendBundle without an API key.
- What happens if my bundle is not included? Nothing is spent and nonces stay free. The bundle simply expires after its window of about 40 blocks.
- Can I launch on Four.meme and PancakeSwap with the same tool? Yes. Four.meme Launch creates a bonding-curve token, while Deploy Token plus Custom Bundle opens trading on PancakeSwap V2.
- Are my private keys stored? No. In a Custom Bundle the keys are used to sign and are never stored; only addresses are kept.
Coordinate your launch with TokenBundle.
Prepare wallets, review allocations and manage network-specific launch execution from one workspace.
Open BNB Chain workspace