Meridian Pay is a Stellar Smart Wallet built by SDF and Cheesecake Labs that delivers Web2-like UX on mainnet. It uses passkeys for passwordless authentication, Merkle trees for efficient token distribution, and the wallet backend for fee sponsorship and transaction indexing.
At Meridian conference, Stellar Development Foundation and Cheesecake Labs presented Meridian Pay, a production smart wallet deployed on Stellar mainnet. The wallet enables passwordless login via passkeys (Face ID/Touch ID), supports multiple assets including XLM and RWAs, and processes payments via QR code in seconds. Key technical innovations include deterministic contract addresses derived from email for pre-funding wallets, Merkle tree distribution for efficient token claims, multi-call contracts for batching operations, and SET-50 NFT implementation for proof of attendance. The wallet backend, an open source tool in beta, handles fee sponsorship at scale using channel accounts and provides GraphQL-based transaction history indexing. All 1000+ conference attendees received real XLM and NFTs, experiencing actual on-chain transactions without managing seed phrases or paying visible fees.
