PumpPair is a Solana launchpad where every coin is a real pump.fun launch paired with one to 4 of four pump.fun coins, and the coin's creator fees are turned into those coins and paid out to holders automatically, in proportion to what they hold.

Every trade on pump.fun pays a creator fee to somebody. On almost every launch that somebody is the team, and holders get a token and a roadmap. We route it the other way. The fees arrive as SOL, the pad spends them on the paired coins, and the paired coins go straight into holders' wallets, about every five minutes.

The launcher. The launcher picks one to 4 of OFFICIAL, TikTok, X and 67. From then on, every trade of the coin earns SOL in creator fees, the pad buys those coins with it in equal parts, and holders receive them in their wallets. Nobody claims anything.

The pair. Every coin here trades against SOL on pump.fun, like any other pump.fun coin. Fees therefore arrive in SOL, which is what the pad swaps into the basket.

Every fee this pad handles passes through one of these, and all of them are public. Nothing below is a claim you have to take on trust: open any of them and the transactions are the record.

The addresses the programs themselves run on are at the bottom of this page.

Launch. A coin is a standard pump.fun launch, on pump.fun's bonding curve. The coin's creator, on chain, is its payout wallet, not the launcher's own wallet.

Earn. Every trade on the curve pays pump.fun's trading fee, and the creator's share of it accrues in pump.fun's creator vault for the payout wallet. Nobody has to claim it by hand: the keeper collects the vault into the payout wallet every minute once it holds more than 0.001 SOL. After graduation the PumpSwap pool pays the creator's share into a second vault, and the keeper collects that the same way.

Buy. Each round, the keeper takes a 10 % ops slice off the top of the SOL that arrived, then swaps the rest of the payout wallet's SOL into the basket through Jupiter, equal parts, one swap per paired coin.

Pay. Of the basket coins a round buys, 85 % goes to the holders by their share of the coin at the snapshot, and 15 % goes into the coin's lottery pot (the lottery). Accruals worth less than 0.005 SOL roll forward to the next round instead of being sent. Everything else is paid straight into the holder's own wallet.

The basket coins are four pump.fun coins: OFFICIAL, TikTok, X and 67. They are what a launch pairs with, what the creator fees are swapped into, and what holders receive.

Because every coin's fees are spent on the same four coins, every trade on the pad is also a buy of its basket. That is the whole reason the pad pairs with them: the volume of every coin launched here flows into the four, and holders end up holding them.

The site's own coin is not launched from the pad. It is launched on pump.fun from the fee wallet, its creator, so its creator fees are the fee wallet's. Once a minute the keeper collects them from pump.fun into that wallet and splits every lamport it has collected two ways, from a ledger of its own collects: 75 % buybacks and burns, sent to the burn wallet, which buys the coin with all of it and burns every coin it holds; 25 % lottery, sent to the lottery wallet, which pays its whole balance to one random holder the moment each ten-minute countdown reaches zero. SOL that lands mid-way builds up as the pot until the next zero.

The home page shows this coin's lottery: the Lottery pot (what the next draw will pay: the lottery wallet's SOL plus what the keeper is about to send it), the countdown to the next draw, the last winners (each opens its payout on Solscan), and Lottery distributed, the dollar total of every prize it has paid. Buybacks is the SOL the burns have spent. Waiting on SOL payment is everything the coin has earned that is not yet a buyback or a pot: creator fees waiting uncollected in its pump.fun creator vaults, and fees collected into the fee wallet and not yet split. While the pot is empty, the hero shows the lottery's share of that figure in the pot's place, as the Expected lottery pot. Both the stat and the pot refresh themselves every 10 seconds. Coins launched on the pad have their own lottery, shown on their own page.

Until the coin is launched and its address is set, the keeper runs none of this and the home page shows $0.

A launch is one transaction. It creates the coin on pump.fun, sets the payout wallet as creator, and bundles your first buy if you asked for one. If your wallet is short of SOL when it lands, nothing launches: the buy and the launch fail together.

Once the coin is on chain the site records it, usually within a minute. Until then the coin page says a launch is still being recorded.

Two splits, and both are fixed.

Said in order: 10 % ops off the top, the rest buys the basket, and of the coins bought 85 % goes to holders and 15 % to the lottery pot. The three rows above are those two steps as shares of what arrived.

After graduation the split does not change. The PumpSwap pool's creator share accrues to the same payout wallet and is collected the same way.

Holders earn the basket, not the coin. If a coin pays OFFICIAL, TikTok and X, a holder's wallet fills with OFFICIAL, TikTok and X. The amount depends on two things: how much the coin traded since the last round, and how large the holder's share of supply was at the snapshot.

Shares are by balance at the snapshot slot, which is recorded on every round. A holder who sells right after the snapshot is still paid for that round; a holder who buys right after it waits for the next one. Wallets holding less than $10 of the coin at the snapshot get no share of that round.

There is nothing to claim. The keeper sends each leg of the basket straight to the holder's wallet. If the holder has no token account for a basket coin yet, the pad opens one and pays the rent.

Accruals worth less than 0.005 SOL roll forward. A wallet holding dust is not paid every round; it is paid once its accrual clears the threshold.

A basket is one to 4 of OFFICIAL, TikTok, X and 67, bought in equal parts. The launcher picks it at launch and it does not change afterwards.

Only those four coins are offered in the picker, each by its mint address. A coin whose Jupiter route dries up later is carried, not replaced; see when a leg is skipped.

The keeper runs a round for each coin about every five minutes, and only when at least 0.05 SOL is spendable in the payout wallet and at least one holder's slice would clear the payout floor.

Every step is a transaction on the coin page's rounds table, with a link to it.

Every coin on the pad runs a lottery beside its payouts. Each round, 15 % of the basket coins it buys go into the coin's pot instead of the pro-rata share; the pot's coins stay in the payout wallet until they are won. Every ten minutes of the wall clock, one random holder of the coin wins the whole pot.

A coin page shows its pot by basket coin, the countdown and its last winners; the Rewards page lists every coin's winners. The PumpPair coin's own lottery pays SOL from the lottery wallet instead of basket coins (above) and is the one the home page shows.

If a swap for one basket coin fails, because Jupiter finds no route or the price moves past the slippage, that leg is skipped and its SOL is carried to the next round, where it is bought on its own. The coin page says so on the round, and a stuck coin stalls only its own payouts. The other legs pay as usual.

Each coin's payout wallet is a keypair only the keeper holds. The keeper could misdirect funds. Every collect, swap and payout is an on-chain transaction listed on the coin page, and the wallet's balance is public. A program that can only buy the basket and pay holders is the next version.

A launch here is three requests and one signature. This site's launcher makes exactly the same calls in the same order, so anything it can do, so can you. There is no key, no registration and no allow list.

What the API will not do is sign for you. It builds the transaction, signs the part only it holds (the coin's own mint key), and hands it back. The launcher's signature is yours to add, so a response leaving this server can do nothing on its own.

// 2. prepare
const res = await fetch("https://pumppair.com/api/launch/prepare", {
  method: "POST",
  headers: { "Content-Type": "application/json" },
  body: JSON.stringify({
    launcher: wallet.publicKey.toBase58(),
    name: "My Coin",
    symbol: "MINE",
    description: "What the coin is about.",
    logo: logoBase64,
    basket: ["FUyZUAF98n3CfyN51gpscGXzsKJgz1o8RpEygy1dgrrP"],
    devBuy: "10000000", // lamports, optional
  }),
});
const { transaction, mint } = await res.json();

// 3. sign and send
const tx = VersionedTransaction.deserialize(Buffer.from(transaction, "base64"));
const signed = await wallet.signTransaction(tx);
const sig = await connection.sendRawTransaction(signed.serialize());

pump.fun changes its creator fee, or stops paying it, and rounds stop. The keeper raises an alert for the operator when a coin's recorded payout wallet is not the one it derives, and when the ops wallet runs low on the SOL that pays every collect and top-up.

A basket coin loses its Jupiter route or a swap keeps failing. That leg is carried and bought on its own in the next round that can.

Holder count explodes. Payouts are threshold-gated, so cost scales with holders who actually earn enough, not with wallets that hold dust.

A holder sells right after the snapshot. Shares are by balance at the snapshot slot, which is the only defensible rule, and the slot is recorded on every round.

The keeper key is custodial in v1, which is why it is stated here in plain words.

Every address this runs on.