How it works

Kickstarter rules, pump.fun speed.

A prelaunch curve that has to sell out, a public countdown, a week of vesting, and creator fees that pay the people building.

The life of a Pumpstarter project

PostedVerified dev lists the project
PrelaunchBackers trade the 30% curve
Sold out300M / 300M
24h countdownLaunch is scheduled
Live on pump.funDev buy through Pumpstarter
7-day vestTokens unlock to backers

Not sold out by the deadline? Trading closes and every backer gets back everything they paid, fees included. The token never launches.

For backers

Back a project

1
Connect a Solana walletAny wallet with SOL. No account needed to back.
2
Buy or sell on the prelaunch curveThe first 30% of supply trades on a curve that mirrors pump.fun, and the price rises as backers buy. Change your mind before sell-out and you get back what you paid. 1.5% of every trade goes to the $PSR treasury. Up to 3% of supply per wallet.
3
Hold through the sell-outWhen the curve hits 300M, trading closes and a 24-hour countdown starts. Not sold out in time? Everyone gets back everything they paid, fees included, automatically.
4
Your tokens vest over 7 daysAfter launch, your allocation sits in the Pumpstarter lock and unlocks linearly. Claim from your portfolio any time.

For devs

Launch a project

1
Verify your X accountVerified account, 500+ followers and at least 10% verified followers.
2
Add your project$TICKER, name, description, website, X, optional community link, a 1500×500 banner and the planned launch time.
3
Publish a roadmapMandatory. Say exactly what you'll build and how creator fees fund it.
4
Curve, countdown, launchBackers trade the 30% curve until it sells out. 24 hours later the pool makes the dev buy on pump.fun. You cover the launch fees, and you can't back your own curve.
5
Earn 95% of creator feesForwarded to your wallet automatically for the life of the token. 5% goes to the $PSR treasury. No holder rewards.

The numbers

Same rules for every launch.

RuleValueNote

Total supply1,000,000,000 tokensStandard pump.fun supply

Prelaunch curve300,000,000 tokens · 30%Mirrors the first 30% of pump.fun's curve

Max per wallet3% of supply · 30,000,000 tokensHeld at any time

Curve price≈ 0.028 → 0.054 SOL per 1MRises as the curve fills

Selling before sell-outBack at your cost, minus 1.5%No profit or loss before launch

Sell lockLast hour before the deadlineBuys stay open. One late exit can't sink a curve

Trading fee1.5% of every buy and sellBuy fees are held until launch

Sell-outTrading closes at 300MThe pool becomes the dev buy

Launch24 hours after sell-outOn pump.fun, at the sell-out price

RefundsEverything you paid, fees includedNot sold out, or not launched within 24h · sent automatically

Vesting7 days, linear, Pumpstarter lockBackers claim as tokens unlock

Creator fees95% dev · 5% $PSR treasuryNo holder rewards, by design

Agentic Mode47.5% dev · 47.5% buyback & burn · 5% $PSROptional, chosen at publish · an AI agent buys back and burns the coin

Launch deposit0.25 SOL from the devCovers pump.fun's fees at launch · unused SOL back after, all of it if the curve fails

Launch window24h after the launch timeNot launched by then? Everyone is refunded in full

Dev walletCan't back its own curveChecked on every buy

After publishingNothing can be editedRules are frozen per project, too

Check it yourself

Don't trust us. Look it up.

The vault

Every project has its own wallet. Its address is on the project page, with its live balance next to what it owes backers. The balance never drops below it.

Every buy

A buy is a plain SOL transfer from your wallet to that vault, with the order number as a memo. You can see it on any explorer.

Every payout

Sells, refunds, returned change and claims are sent from the vault to your wallet. The transaction is linked from your portfolio.

The launch

One transaction creates the coin on pump.fun and buys the 300M with the pool. The coin's creator is the vault, so creator fees come back to it before they're forwarded.

One price per curve step

The price you pay is the curve's price at that moment, the same formula for everyone. Nobody can buy before the curve opens: the coin doesn't exist until launch.

Who holds what

What Pumpstarter can and can't do.

Pumpstarter is custodial: backer SOL sits in wallets we control until it's paid out or spent on the launch. The rules are enforced by our software, not by an on-chain program, which is why everything above is public. Here's exactly what that means.

We can

Hold each vault's key, sealed so only our payout worker can open it. The website can't move funds.

Send the refunds, sells, claims and fee payouts the rules on this page call for.

Pick which top projects get $PSR-funded buybacks and rewards.

We can't

Change a project after it's published, including its rules. They're copied onto it at publish.

Let a dev touch backer SOL or backer tokens, before or after launch.

Keep fees from a curve that didn't sell out: those go back to backers with the rest.

FAQ

Good questions.

Can I sell before launch?

Yes. Until the curve sells out you can sell back and get what you paid for those tokens, minus the 1.5% fee. Selling closes for the last hour before the deadline so one late exit can't sink everyone else. At 300M, trading closes for the 24-hour countdown.

Where does the SOL go?

Into the curve's pool. At launch the whole pool makes the 300M dev buy on pump.fun, so the token opens exactly where the curve left off.

What if it doesn't sell out?

Trading closes at the deadline and every holder gets back everything they paid, buy fees included, sent automatically. Nothing launches on pump.fun. Pumpstarter only earns on projects that launch.

What if the launch itself fails?

If a sold-out project hasn't launched 24 hours after its launch time, it refunds in full the same way. SOL can't get stuck.

Why can't I sell right after launch?

Your tokens sit in the Pumpstarter lock and unlock linearly over 7 days. It stops the first day from turning into a dump.

How do devs get paid?

Through creator fees on pump.fun. Pumpstarter forwards 95% to the dev's wallet automatically and 5% to the $PSR treasury. No holder rewards.

Who can launch?

Devs with a verified X account, at least 500 followers and at least 10% verified followers, plus a complete project page and roadmap.

What is Agentic Mode?

An option devs choose when publishing. Half of their creator fees fund an AI agent that buys back and burns the coin: it leans into dips, doesn't chase pumps, burns everything it buys in the same transaction, and posts every decision and its reasoning on the project page. Hard limits cap each buy at about 1% price impact, and its budget is always spent within 72 hours.

Can the dev buy their own curve?

Not from the wallet they launched with: those buys are refused. A second wallet gets the same price as everyone else, capped at 3% of supply like any backer, and no head start: the curve opens to everyone at once.

What if Pumpstarter's servers go down?

Your SOL stays in the project's vault. Anyone can trigger deadline refunds through a public endpoint, and the worker catches up on every payment and payout when it's back.

Risk. A verified dev and a roadmap are filters, not guarantees. Tokens can lose all their value, and prices after launch are set by the market. Pumpstarter holds backer SOL until launch, so you're also trusting us to run it as described. Launches depend on pump.fun: if it changes, a launch can fail and refund. The code hasn't had an external audit. Nothing here is financial advice. Back only what you can afford to lose.