ProofPal AI

ProofPal AI is an AI-powered onchain receipt generator for crypto payments. It solves a simple but frustrating problem I personally face: after sending crypto, it's difficult to remember why I made the payment, what it was for, or quickly provide proof of payment later. With ProofPal AI, users connect their wallet, make a payment, and instantly receive a professional receipt enhanced with AI. The receipt includes an AI-generated title, summary, tags, QR code, PDF export, and a public verification page. Receipt metadata is stored on IPFS, while its hash and metadata reference are recorded on the Monad blockchain through a smart contract, making it verifiable and tamper-resistant. The app also supports natural language search, allowing users to find receipts with queries like "Show my freelance payments from July" instead of manually browsing transaction history. Building this project helped me learn more about integrating AI with blockchain, designing secure smart contract workflows, storing metadata on IPFS, and creating a polished end-to-end Web3 user experience that solves a real-world problem rather than showcasing blockchain for its own sake.