Launching

Presets, the integrator field, the mint key and the size limit.

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What it is

A launch through the SDK or the CLI builds the same transaction as the site. You pick a preset, name your integrator authority, supply a mint key and send.

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When to use it

Use it after the Quickstart, when you build launches into your own product.

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Step by step

1. Pick a preset

   The SDK exports them as PRESETS. The CLI takes the name with --preset.

2. Name your integrator

   A launch can name the authority of a registered integrator.

   pari launch --preset standard --name "Cat" --symbol CAT --uri https://m.pariprotocol.xyz/m/example --integrator <authority>
   

   With the SDK, pass integrator: new PublicKey(authority) to client.launch. The integrator is recorded on the token record and never changes for that token.

3. Supply the mint key

   You generate the mint keypair. The CLI makes one in memory by default and never prints it. To keep the mint address stable (a vanity address, a retry after a failed send), pass a keypair file:

   pari launch --preset standard --name "Cat" --symbol CAT --uri https://m.pariprotocol.xyz/m/example --mint-keypair ./mint.json
   

   The mint signs the launch transaction together with the creator. Keep the file out of version control.

4. Add a dev buy, if you want one

   --dev-buy <SOL> buys at launch, into a locked vault. The tokens stay locked until the unlock time.

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Numbers and limits

	light	standard	strict
Sniper fee falls from 99% to 1% in	30 s	30 s	180 s
Max wallet	1% for 60 s	0.5% for 120 s	0.25% for 300 s
Buys per slot	5%	3%	1.5%
Dev launch buy cap (locked)	1.5%	1%	0.5%
Dev buy unlock	Migration or 24 h	Migration or 24 h	Migration or 7 days

These are starting values and may change before the mainnet launch.

A Solana transaction is at most 1232 bytes. The launch carries the name, the ticker and the metadata URI inside it. Every uri the upload service returns is at most 60 characters, for example https://m.pariprotocol.xyz/m/<id>, so a launch with the service’s URI fits.

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What can go wrong

The integrator key is not registered

It is not an error. The builder leaves it out, and the integrator share of that token goes to the treasury. Registration is by form and is reviewed. pari integrator request prints the form address and the fields, and --submit posts the request.

launch throws a size error

The transaction is over the limit. Shorten the name, the ticker or the URI, or drop the integrator. If you host your own metadata, keep the URL short.

The dev buy is refused

It is over the preset’s cap.

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Next

Uploads

Short URIs for your metadata.

Fees and payouts

What you receive for each launch.