The Manifold Creator Core Solidity library supplies ready‑to‑use, extensible ERC‑721 and ERC‑1155 contracts that let NFT creators deploy their own token contracts with built‑in minting, on‑chain royalties, and permission controls. It is aimed at developers and artists building on Manifold Studio who want a base contract they can customize further by registering modular “extension apps” for added functionality.