CardanoPay

May 2025Cross-PlatformOngoing

Remote-sign desktop bridge enabling mobile dApps to trigger CIP-30 wallet payments with realtime sync.

Repository
React NativeExpoReactNode.jsMongoDBCardanoWebSocketsJWT
Screenshot of the CardanoPay application

CardanoPay is a proof-of-concept remote-sign bridge that enables mobile dApps to initiate ADA payments while leveraging CIP-30 browser wallets on desktop. The system pairs mobile and desktop sessions using a short PIN, then synchronizes payment lifecycle events in realtime.

Key Features

  • Mobile payment intent generation without direct wallet access.
  • Secure PIN-based mobile ↔ desktop session pairing.
  • JWT authenticated bridge for delegated signing.
  • Realtime payment lifecycle updates using Socket.io.
  • Backend persistence with Express and MongoDB Atlas.

Key Takeaways

  • Designed cross-device transaction flows for blockchain UX.
  • Implemented realtime state machine for payment lifecycle.
  • Explored CIP-30 wallet limitations and bridging strategies.
  • Built modular architecture ready for SDK extraction.