MinAuth is a zero-knowledge proof-based authorization system that enables secure HTTP API access through JWT tokens granted after validating cryptographic proofs. Built as a monorepo with TypeScript libraries and plugins, it leverages Mina's o1js library to verify proofs without exposing underlying secrets, supporting various authentication scenarios from simple preimage verification to blockchain-based NFT time-locks. This system is designed for developers building privacy-preserving authentication systems who need to verify user credentials without handling sensitive data directly.