Overview

SWEEP is a Solana launchpad where every token is permanently paired with one Metaplex Core NFT collection. A share of every trading fee is paid into a per-launch Sweep Vault — a program-derived account whose SOL can only ever be spent buying NFTs from that collection. Purchased NFTs are delivered to a destination fixed when the launch was created.

Before graduation, trading fees fund NFT sweeps. When the bonding curve sells out, liquidity migrates to a PumpSwap pool whose LP tokens are locked in a program PDA; after graduation, PumpSwap liquidity revenue funds continued NFT sweeps.

Guarantees enforced by the program

• The linked collection, NFT destination, fee split, max NFT price and sweep interval are written into the launch account and can never change.
• There is no instruction that withdraws from a Sweep Vault except execute_sweep, which can only buy a verified listing from the linked collection.
• Mint authority is revoked at launch and no freeze authority is ever set; supply is fixed.
• The graduated LP position is owned by a PDA with no withdraw path for principal.

What is off-chain

The indexer (history, charts, rankings) and the keeper (which submits sweeps, graduations and LP harvests) are conveniences. Neither custodies funds, and every action they take is permissionless — anyone can submit the same transactions. The chain is the source of truth; this app reads balances, vaults and quotes directly from it.