LeP2P
Sybil-resistant decentralized fiat on/off-ramp for crypto that allows users to trade through a smart-contract escrow.
Demo
About
Introducing LeP2P: A Peer-to-Peer Sybil-Resistant Decentralized Fiat On/Off-Ramp for Crypto application that offers a secure and user-friendly platform for trading fiat for cryptocurrencies. It employs Worldcoin for Sybil-resistance: enhancing security and trustworthiness. The platform utilizes smart-contract escrows for seamless, intermediary-free transactions. LeP2P sets initial transaction limits for Worldcoin ID holders at 1,000 euros and requires KYC verification for higher amounts. The interface is designed to be user-centric and accessible to users of all levels of expertise. We also store the payment through Web3 Storage, tapping Filecoin and IPFS
How it's made
Technologies used: - WorldCoin for the user authentication so that we can ensure that the app can only be used by real humans. - Web3Modal for Wallet Connections - Quicknode as our Node RPC Provider - Polygon ID for leveraging verifiable credentials, which for our use case, is a KYC that unlocks for bigger volume in our protocol - AirStack for querying XMTP enabled wallets - Push Protocol for Push Notifications in the app for offer creation, completion, cancellation - Web3Storage: IPFS + Filecoin for decentralized hosting of payment proofs - The Graph: Indexer for our contract events that serve the protocol current orders and updates them accordingly - Polygon Mumbai for our contract deployments - Foundry for smart contract development + deployments + testing - Next.js with Wagmi + viem for contract interactions in the front-end (shadcn + tailwind <3)