How the machine works.

Overview

The Buyback Machine is a launchpad on pump.fun, on Solana. It is a simple loop. A coin deployed here carries a tax on every trade. The machine claims that tax on a fixed clock and spends all of it on buybacks. Everything it buys, it burns.

90% of each coin's tax buys that coin. 10% buys the main token. There is no second split and no payout to anyone.

The tax

pump.fun lets a coin carry its own creator fee when it is paired with a token instead of SOL. Coins on the machine are paired with $PUMP and launch with a 1% tax, on top of pump.fun's own fee (2.25% all-in). Buys and sells both pay it, on the bonding curve and on PumpSwap after graduation.

The tax is set when the coin is created and cannot be changed afterwards. It is paid in $PUMP to the coin's creator, which is the coin's engine wallet.

The $PUMP thesis

Every coin on the machine trades against $PUMP, not SOL. That makes each one a sink for it:

• Buy pressure. Buying any coin here means buying $PUMP first.
• Less float. The $PUMP paid into a coin sits in its bonding curve and then in its PumpSwap pool. Graduated liquidity is locked for good.
• Never sold. The tax is collected in $PUMP and spent in $PUMP. The machine never converts it to SOL or stables.

The machine does not burn $PUMP itself. It burns the coins it buys with it. What shrinks is the amount of $PUMP free to be sold, and that grows with every coin deployed and every coin that graduates.

The cycle

One clock runs every coin. Every 3 minutes, for each coin:

1. The engine wallet claims 100% of the unclaimed tax.
2. 90% is spent on one buy of the coin.
3. 10% is spent on one buy of the main token.
4. The coin and the main token that came back are burned on-chain.

A pot under the minimum waits and joins the next cycle. A step that fails is retried on the next cycle, because the funds are still in the engine wallet. Nothing is skipped quietly: the ledger shows rolled-over and failed cycles too.

The 10% cut

The cut is a tenth of the tax the coin already collects, not an extra fee.

• $50 of tax sends $5 to the main token and $45 to the coin's own buyback.
• $100 of tax sends $10 and $90.
• $1,000 of tax sends $100 and $900.

While the main token is not live yet, each coin's cut is set aside in its engine wallet and is never re-split. It is spent on the main token's first buyback after launch.

The main token

The main token is the one every coin on the machine buys back. It is a tax coin too, and it runs the same loop on itself: 100% of its own tax buys it back and is burned. Its creator wallet is an ordinary wallet, so the machine only ever spends the tax it just claimed and only ever burns the tokens that buy brought in.

Deploying a coin

Connect a Solana wallet on the deploy page, add a name, a ticker and a logo, and send the launch SOL. That covers the pump.fun create and a small permanent gas reserve for the coin's engine wallet. An optional dev buy is paid in SOL, swapped to $PUMP, bought right after the create and sent to your wallet. If a deploy fails, the deposit is refunded.

Engine wallets

Every coin gets a fresh wallet that is its creator on pump.fun. That is what makes the tax claimable by the machine and by nobody else. The wallet's key is encrypted at rest and is only used to claim, buy and burn. It needs a little SOL for fees; if it runs low the cycle is skipped with a note until someone tops it up.

Ledger

Every cycle of every coin is a line on the ledger with its claim, buy and burn transactions. The ledger starts empty. An empty window does not mint a placeholder burn.

Glossary

• Machine — this buyback and burn loop.
• Tax — the coin's own creator fee on pump.fun, paid in $PUMP on every trade.
• Cycle — one claim, buy and burn, every 3 minutes.
• Cut — the 10% of each coin's tax that buys the main token.
• Main token — the token every coin buys back and burns.
• Engine wallet — a coin's creator wallet, run by the machine.

Important notes

This site explains the product. Buybacks depend on trading volume; no volume means no tax and no burns. Digital assets can lose value. The Buyback Machine is not affiliated with Solana Labs or pump.fun. Nothing here is financial, legal, or tax advice.