Patch

Patch is a concentrated-liquidity automated market maker on Solana, designed to let pool creators configure trading rules at launch. Each pool includes six hook slots, where programs can run around trades and liquidity deposits. Its built-in Rack combines launch guards, dynamic fees, a time-weighted average price (TWAP) oracle and creator fees. Pool settings, hook permissions and fee caps are fixed at creation, while safeguards restrict tokens and hook behavior to protect vaults and ensure failed calls do not move funds.

Patch supports standard SPL and Token-2022 tokens, including transfer-fee tokens, while refusing mint extensions that could compromise pool funds or withdrawals. Liquidity positions are Token-2022 NFTs that holders can transfer, sell or lock; locked positions can continue earning fees, and locks can only be extended. The protocol also directs a share of pool fees to a treasury that buys and burns PATCH tokens under defined limits. For developers and integrators, Patch offers an on-chain program IDL, a TypeScript SDK, an HTTP API and documentation for building hooks, quoting trades and creating transactions.