Tools
letsbonk.fun Launcher
A coin on Raydium LaunchLab, the curve behind letsbonk.fun, with your first buy in the same transaction.
Open letsbonk.fun Launcher ↗letsbonk.fun Launcher overview
Step by step
- Step 1Connect walletThe connected wallet is the pool's creator and owns its creator vault.
- Step 2Enter detailsName, ticker, description, logo and social links, as shown on the coin's page.
- Step 3Pick the platformletsbonk.fun or Raydium's own launchpad: same program and curve, different listing and fee recipient.
- Step 4Set the dev buyHow much SOL to spend in the same transaction as the pool's creation. Zero is allowed.
- Step 5Metadata goes to ArweaveThe logo, then a metadata JSON pointing at it, uploaded via Irys from your wallet.
- Step 6Sign one transactionPool creation, your first buy and the Solstack fee in one transaction. If any part fails, none of it is applied.
- Step 7Coin is liveThe mint, the pool and a link to the coin's page on the platform you chose.
letsbonk.fun is a front end; LaunchLab is the program
Every letsbonk.fun coin is a LaunchLab pool created with letsbonk.fun's platform id. Solstack builds the same initialize instruction with the same platform id and curve numbers (732.5M of 1B on the curve, graduating at 85 SOL). The site indexes it the same way.
What the platform changes
| letsbonk.fun | 1.25% trade fee on the curve; the platform's share goes to BONK burns. Lists on letsbonk.fun. |
|---|---|
| Raydium LaunchLab | 0.75% trade fee; 10% of the platform's share is paid into your creator vault. Lists on raydium.io/launchpad. |
| Both | 1,000,000,000 supply, 6 decimals, constant-product curve, migrates to a Raydium CPMM pool when 85 SOL has been raised. Mint and freeze authority are held by the program. |
The atomic first buy
Pool creation and your buy land in the same transaction. The buy comes from one wallet and is visible on-chain.
Before you start
- Have the name, ticker, a square logo and any links ready. They're written into the coin's metadata and can't be edited after launch.
- Pick the platform: letsbonk.fun or Raydium's own launchpad. It decides the trade fee and who gets the platform's share.
- Decide the dev buy. Zero is allowed.
- Keep the dev buy, the 0.05 SOL fee and a little extra for rent, uploads and network fees in the wallet. The review screen shows the total before you sign.
What it costs
| Solstack fee | 0.05 SOL per launch. |
|---|---|
| LaunchLab trade fee | On the dev buy: 1.25% on letsbonk.fun, 0.75% on Raydium. |
| Rent, uploads, network fee | Small amounts for the pool's accounts, the Arweave upload and the transaction, shown before you sign. |
What you sign
Irys funding approvals if needed, then one transaction: initialize, buy and the Solstack fee.
Troubleshooting
| Simulation fails with a platform or config error | The platform's config has probably changed. Nothing was signed; launch on the site directly until Solstack is updated. |
|---|---|
| Coin doesn't show on letsbonk.fun | You're on devnet, where only Raydium's test platform exists. |
| Metadata upload fails | Retry. Arweave gateways occasionally time out, and a failed upload costs nothing. |
FAQ
What does it cost?
A 0.05 SOL Solstack fee, LaunchLab's trade fee on the dev buy (1.25% letsbonk.fun, 0.75% Raydium), rent and the network fee.
Is this the same as launching on letsbonk.fun?
Yes. Same program and platform id; your browser talks to the program directly.
letsbonk.fun or Raydium?
letsbonk.fun: 1.25% fee, its share goes to BONK burns. Raydium: 0.75%, 10% of its share to your creator vault.
Why is the first buy in the same transaction?
It's atomic, so nobody can trade before your buy.
Does it work on devnet?
The program does; the platform configs don't. Rehearsals use Raydium's test platform.