LaunchLab Create & Bundle Buy

LaunchLab Create & Bundle Buy opens a Raydium LaunchLab coin on the curve you set and has up to 8 of your own wallets buy it in the block of the create. Your wallet signs the create, the imported wallets sign their buys in your browser, and Jito receives them as one bundle. There is no half launch: the bundle lands whole or not at all.

LaunchLab Create & Bundle Buy j.tools/en/tools/launchlab-create-and-bundle-buy

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LaunchLab Create & Bundle Buy 0.1–0.47 SOL Platform fee

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Platform fee

0.1–0.47 SOL set by the number of bundle wallets and the address option

The Jito tip, network fee, rent and your buys are separate.

When this tool fits

#when-this-tool-fits

• You want your own graduation target, curve share and supply, and a same-block start for your buys.
• You want those buys spread over up to 8 wallets you control, with a preview of the supply each one ends up holding.
• You hold the private key of every wallet you plan to include. The tool imports them, and they sign in your browser.
• You only need one wallet. LaunchLab Create is the simpler tool.
• You need more than 8 buying wallets in the opening block. One bundle holds 8, and a second bundle could land in a later block.

Before you start

#before-you-start

• A creator wallet, connected (how to connect) or entered through Local Signer. It pays the platform fee, the Jito tip and the rent with 0.01 SOL of headroom, and its own creator buy in the pair asset. Keep it out of the bundle list: the launch is blocked while it appears there.
• Up to 8 bundle wallets and their private keys (Base58, Base64 or array). On a SOL pair each one needs its buy plus 0.015 SOL for its accounts and fees. On a USD1 pair each needs its buy in USD1 and 0.015 SOL.
• Your curve numbers and the coin’s details, as for LaunchLab Create: a target, a curve share between 51% and 85%, a supply between 10 million and 1 trillion tokens, a name, a symbol and a logo up to 5 MB.

Use only short-lived operational wallets; never enter a seed phrase or a long-term wallet key.

Use

• Only short-lived operational wallets

Never enter

• A seed phrase
• A long-term wallet key

How to use it

#how-to-use-it

1. Shape the curve

   Pick SOL or USD1, a Graduation target, the Supply sold on the curve and the Total supply, as in LaunchLab Create. Fill in the Token name, Symbol and Token logo, and turn on Creator buy if the creator wallet should buy inside the create.

2. Import and fund wallets

   Click Import wallets and add up to 8 wallets by private key, each holding its buy and a little SOL for accounts. Give each one a buy amount, or let Smart launch spread a Total bundle buy over them with Apply to wallets. Every row should read Ready.

3. Launch the bundle

   Pick a Jito tip, choose a Token address (CA) option and check the Cost breakdown. Press Launch bundle, approve the create in your wallet and wait for it to confirm.

Key settings

#key-settings

• Pair asset and Graduation target: SOL (selected when the page opens) with 25, 50 or 85 SOL (85 to start) or a Custom target between 24 and 500 SOL; or USD1 with 5,000, 12,500 (to start) or 25,000 USD1, or Custom. Every buy in the bundle, the creator’s and each wallet’s, is paid in the pair asset.
• Supply sold on the curve: 51% to 85%, starting at 79.31%. The rest seeds the Raydium pool at graduation.
• Total supply: In whole tokens, from 10 million to 1 trillion, 1,000,000,000 to start. Every LaunchLab coin has 6 decimals.
• Coin fields: The same as LaunchLab Create. The name takes up to 32 characters and 32 bytes, the symbol 1 to 10 letters and digits, the description up to 500 characters. The logo is required (up to 5 MB) and the website, X and Telegram links are optional full https:// links.
• Creator buy: Off by default with an empty amount. Turned on, the creator wallet buys inside the create transaction, ahead of the bundle wallets.
• Bundle wallets: 1 to 8, imported by private key. A wallet already in the list is skipped on import, and one that appears twice reads Duplicate. Each row shows Balance, Buy, Tokens and Supply in the order the buys run, and reads Ready, Low balance, No buy or Not a number. Clear empties the list.
• Smart launch: Spreads a Total bundle buy (prefilled with 2 on a SOL pair, 100 on USD1) with one of four strategies: Organic, Even, Front-loaded or Stealth. Max per wallet caps one wallet’s share of the total (1 to 100%, 20% by default), Variance jitters the amounts, and Randomize shakes the variance and applies again. A wallet that cannot cover its share is flagged in its row, never trimmed to its balance. Typing a buy by hand dims the panel, and Apply to wallets puts it back in charge.
• Jito tip: Normal, Fast (default) and Turbo bid 0.004, 0.012 and 0.032 SOL per bundle transaction. A bundle holds the create plus one transaction for every two wallets, at most 5 in all. If ten times the live 99th-percentile landed tip is higher, the bid uses that, never above 0.25 SOL. Custom takes the whole tip as one SOL amount. Inside a bundle only the tip bids for a place in the block, so there is no priority fee.
• Token address (CA): Random address, Ready custom address (ending in ray) or Grind an address, as on LaunchLab Create. Both custom options add 0.1 SOL.

Fees and costs

#fees-and-costs

Caution

About fees. Every action has two costs: the Solana network fee paid to validators, and the J Tools platform fee. The platform fee always shows in the app before you confirm, and nothing is charged until you sign. Fees can change over time, so trust the in-app summary rather than a number you saw once.

Cost	Amount
J Tools platform fee	0.05 SOL base, plus 0.05 SOL per wallet for 1 to 4 wallets or 0.04 SOL per wallet for 5 to 8
Ready ray address or ground address	+0.1 SOL
Jito tip	Paid by the creator wallet inside the create transaction, shown with the transaction count
Creation (network rent)	Rent for the new coin’s accounts and metadata, priced at today’s rent rate
Per-wallet reserve	0.015 SOL each bundle wallet keeps for its accounts and fees
Creator buy and bundle buys	Your position, not a fee. Bundle buys come out of the bundle wallets
LaunchLab curve fee	1.05% of every curve trade, each bundle buy included: Raydium 0.25%, platform 0.75%, creator 0.05%. None of it goes to J Tools

The platform fee by wallet count:

Bundle wallets	Random address	Ready or ground address
1	0.10 SOL	0.20 SOL
2	0.15 SOL	0.25 SOL
3	0.20 SOL	0.30 SOL
4	0.25 SOL	0.35 SOL
5	0.25 SOL	0.35 SOL
6	0.29 SOL	0.39 SOL
7	0.33 SOL	0.43 SOL
8	0.37 SOL	0.47 SOL

That table is the whole 0.1–0.47 SOL range. Up to 8 wallets it is the same schedule Pump.fun Create & Bundle Buy charges, so the two launchers quote one price for the same bundle. The fee is a visible SOL transfer in the create transaction, and the Cost breakdown shows base and per-wallet fee on one Platform fee line, with the address surcharge on its own line.

Total from your wallet covers the creator wallet only: the fee, the tip, the rent and the creator buy. On a USD1 pair it reads as the USD1 amount plus the SOL. Once the form is complete the page simulates the create and shows the exact figure; until then it carries ≈. After the launch, the success window reads what really left every wallet from the confirmed transactions. For the current numbers, see the fee schedule.

How it works

#how-it-works

• The create transaction holds the create, the creator buy, the platform fee and the Jito tip. It is the only transaction your wallet approves.
• The wallet buys follow, two to a transaction, each signed by its own bundle wallet in your browser. They are quoted in the order they run, so each wallet spends exactly what you entered, and each accepts at most a 1% rounding shortfall on its quote.
• Why 8 wallets. Two LaunchLab buys fill a transaction and a Jito bundle holds five, one of them the create. Bundles and Jito covers the mechanics.
• Checks before sending. Right before the launch the page reads every balance again and stops on the first short wallet, naming it. It then simulates the create. Nothing has been spent at that point.
• The relay. The server checks that the create makes the declared coin and that the bundle pays the fee for the real number of buying wallets, counted from their signatures, plus the surcharge for a ready address. It then relays the bundle to Jito and holds it until the create confirms. One launch runs per creator wallet at a time.
• All or nothing. A bundle that does not land changes nothing on chain, and no wallet pays, the tip included.
• Creator fee. The wallet that signs the create is the creator. 0.05% of each curve trade, the bundle buys included, collects in its creator vault.
• Graduation. When the curve collects its target, Raydium moves the coin into a CPMM pool with the rest of the supply.

How to use it

1. 1 Shape the curve
2. 2 Import and fund wallets
3. 3 Launch the bundle

How it works

One Jito bundle is built the cost breakdown shows what leaves your wallet

1. 1 All balances read again right before launch buy + 0.015 SOL
2. 2 Optional: ready …ray or ground address …ray
3. 3 Create tx: your buy, platform fee, Jito tip LanMV9s…ADduJ3uj
4. 4 Wallet buys signed in your browser, two per tx ≤ 1232 bytes / tx
5. 5 Up to 8 wallets, 5 transactions per bundle ≤ 8 wallets · ≤ 5 tx
6. 6 Create simulated before your wallet signs simulateTransaction
7. 7 Server checks the create and the fee 0.05 + per wallet
8. 8 Relayed to Jito, held until the create confirms Jito Block Engine

All land in the same block, or none do atomic

LaunchLab Create & Bundle Buy · circles are the steps in How to use it, squares the steps in How it works

Practical tips

#practical-tips

• Plan the buys against the target. The creator buy and every wallet buy go into the curve. A bundle that would take the whole curve would trigger graduation in the middle of the launch, so the page stops it. Raise the target or lower the buys.
• Fund the wallets before you set the buys. Each one needs its buy plus 0.015 SOL, or on a USD1 pair its buy in USD1 plus 0.015 SOL. Smart launch does not trim a buy to fit a balance; it leaves the row on Low balance.
• Read the Tokens column. Each buy moves the curve, so a later wallet gets fewer tokens for the same amount. The supply you set changes these figures too.
• Start with a preset tip. The presets already rise on their own when the tip market is hot. Raise the tip only for a launch into heavy competition.

Before you sign

#before-you-sign

The create transaction you approve carries the platform fee and the Jito tip for the whole bundle. Check Total from your wallet and the Jito tip line; the bundle buys come out of the bundle wallets, not yours. The app is the current source of truth for amount, fee and route.

Common issues

#common-issues

• These buys would take the whole curve and trigger graduation. Raise the target or lower the buys.
• The target must be between 24 and 500 SOL. A Custom SOL target is empty or out of range.
• Supply must be between 10 million and 1 trillion tokens. Change Total supply.
• Your connected wallet is also in the bundle list. Remove it from the list. Its buy belongs in Creator buy.
• Import the bundle wallets below. The bundle needs at least one wallet.
• Some bundle wallets have no buy amount. Give each one an amount or remove it.
• Every bundle wallet needs enough balance for its buy. A row reads Low balance. Top it up and press Refresh balances.
• Bundle not sent. A wallet ran short between import and launch. The window names it, shows its balance, what it needs and the gap, and offers Set this buy to the amount it can afford. Nothing was spent.
• This buy is too small to get any tokens after the curve fee. Raise that buy.
• Only 8 wallets fit in one bundle. The buys did not pack into five transactions. Remove wallets and try again.
• Enter the custom speed in SOL as a number above 0, or pick a preset. Custom is selected under Jito tip with no valid amount.
• Not enough in your wallet. The creator wallet cannot cover the fee, tip, rent and creator buy. The window shows the gap.
• A launch is already running. One launch runs per creator wallet, and one per browser across tabs. Wait for it to finish.
• The bundle did not land. The window reads Bundle not sent: nothing reached the chain, so no wallet paid anything. Press Refresh and retry, with a higher tip if the network is busy.
• Launch not confirmed yet. The bundle went out but the page could not confirm it. Open Check the transaction before you launch again, or you could pay twice.
• Too many logo uploads. One connection can upload 100 logos a day, with a per-minute limit as well.

Related tools

#related-tools

• LaunchLab Create
• StonkFun Create & Bundle Buy
• Bonk.fun Create & Bundle Buy
• Pump.fun Create & Bundle Buy
• Creator Fee Claim
• Multi Swap
• Bundled Trade
• Maker Bot
• Bump Bot
• Holder Snapshot

Note

About wallet warnings. Some tools bundle several instructions into one transaction, for example creating a token and its metadata together. Phantom can show a caution banner for these transactions, and where the tool tells you to expect one, it does not mean something is wrong. Read what you are signing, then approve if it matches what you set up. If a warning appears that the tool did not mention, decline it and tell support.

Tip

J Tools is non-custodial. We never store your wallet’s private keys and never ask for your seed phrase. Every transaction you approve in a connected wallet is signed inside that wallet, and its key never reaches our servers. A few multi-wallet tools do let you paste private keys for throwaway hot wallets, which stay in your browser tab and sign there. Holder Booster is the one tool that hands a key to our worker: the fresh distributor wallet it creates for each run, sent encrypted. Never paste a key tied to long-term holdings, and if a page ever asks for your seed phrase, stop and close it.

Help

#help

Fees and safety · All tools · Support