# Launch from your own wallet

Pangea v4: how a coin launches today. Every new launch is a v4 launch. A v4 coin lives on up to six chains: Robinhood Chain, Base, Ethereum, BNB Chain (BSC), Solana and Elysium. The four EVM chains and Solana carry LayerZero and Hyperlane; Elysium carries Hyperlane only. This tab is all of v4: creating a coin, chains and pairs, fees and holder rewards, opening a chain later, handing over, launching from your own wallet, the Bundle Kit, bridging, contracts and the API. Coins launched before v4 are in the v3 and v2 tabs.

- Every v4 coin lists all v4 chains by default: Ethereum, Base, BNB Chain, Robinhood Chain, Elysium and Solana. The creator only picks the chains to open now, then launches each from their own wallet with that chain's own Launch button (Launch on Solana, Launch on Base, and so on): Solana first, the other chains after. Each click does the whole chain, its tokenomics included. Every other chain stays not open yet and can be opened later, with no extra choice at the launch and no extra cost.
- Each chain's launch is complete on its own or does not happen. A failed chain reverts whole, so its buy money never leaves the wallet, and it is retried as it is; a chain already open is marked done.
- Two chains can bridge to each other as soon as both are open. A transfer to a listed chain that is not open yet is held, never lost.
- Launch buys from several wallets work on every chain, in an ERC-20 quote token: the creator sends each buyer an ask and each buyer signs their own buy with their own wallet. In the chain's native coin each buyer pays from their own refundable deposit (sent when they sign): if the buy is skipped or the launch never opens, it stays theirs, and they withdraw it any time under Your launch-buy deposits on the launch page. The dev buy can be split between several wallets, each chain in its own transaction.
- The creator's own opening buy and the dev buys inside the open pay no pool fee, on every chain, at the launch and when a chain is opened later. So do the other launch buys the open runs: the signed launch buys on the EVM chains and the creator's buy list on Solana. Every other buy pays the pool's full fee: Solana co-buys, the bundle kit's buys, buys over the bridge and every later trade.
- Launch from your own wallet: no launch fee, you pay each chain's gas. Pangea sends no step of its own for a v4 coin, no route setup and no listing step, and there is no flat platform fee.
- Every other service is paid by whoever uses it, when used: the bridge fee, delivery and the price-gap fee by the person bridging.

## Or the platform opens it: pay-per-use

- The same chains, transports, prices, opening buy and split dev buy, opened for you by Pangea's launcher. You sign once per chain, pay one launch fee on one chain, and the launcher opens every chain within the hour.
- Nothing is spent until the fee is paid. A paid fee is refunded if no chain opens, and it is settled to Pangea only after the coin is open.
- In a launch that opens Solana with other chains, the page asks who opens Solana. The default, we do it: Pangea's launcher opens Solana too, first sending the creator's launch-buy list, then the whole Solana launch as one transaction, with no extra signature, its cost in the fee. Until the launcher's buy-list builder is live the page says so and asks you to sign Solana yourself.
- Or do the Solana leg yourself: one transaction from your own Solana wallet, up to 32 launch buys, and its cost is taken out of the fee quote. A coin launched on Solana alone is always a self-launch.

## Launch buys and the bundle kit in a self-launch

- On the EVM chains other wallets' signed launch buys go in this launch too, and the bundle kit works with it as well (see launch buys and the bundle kit).

## Payout wallets: one per chain type

- Creator fees are paid to one payout wallet per chain type: an EVM wallet for the EVM chains, a Solana wallet for Solana. Each is asked when that chain type is first opened (at launch, or when you open it later), and it is required.
- At launch: an EVM payout wallet when any EVM chain opens now, a Solana payout wallet when Solana opens now. The launch page and the platform-paid launch (on the page or through the API) will not launch without them. A chain type that is only listed (opened later) is not asked at launch.
- A chain type's payout wallet is the coin's creator role wallet of that type, so handing over the creator role moves it.

Part of the Pangea documentation, v4 tab: https://www.pangea.trade/app/docs.md