Mini

Mini Stay is a stealth payments mini app built for World Chain. By leveraging zero-knowledge (ZK) technology, it enables users to make private, untraceable transactions while maintaining compliance and user verification. The app is tailored to verified humans, offering them enhanced privacy, reduced transaction friction, and exclusive benefits. Mini Stay aims to set a new standard for privacy-first payments within the World Chain ecosystem, empowering users to transact securely and discreetly.

Mini Stay was developed as a privacy-first mini app for World Chain, leveraging a stack designed for stealth payments and verified human access. The core privacy feature uses zero-knowledge proofs (ZKPs), specifically zk-SNARKs, to allow users to make transactions that are both private and provably valid. For human verification, we integrated World ID, which ensures that only verified individuals can access the app’s stealth features.

The backend smart contracts are written in Solidity and deployed on World Chain. We used Circom to build custom ZK circuits, and SnarkJS for proof generation and on-chain verification. The frontend is built with React and communicates with the contracts using ethers.js, providing a smooth user experience.