Swappy
We were inspired by how we used to play and trade toys with one another as children.
Key Features
- Marketplace for trading toys
- Lost item bounties
- Secure trade validation via VISA API
- Guardian approval system
Technologies
Frontend: React + Vite
Backend: Node.js (Express)
APIs: VISA PAV, Google Gemini AI
Challenges
Some challenges we ran into included:
- Ensuring child safety & moderation.
- Managing VISA mTLS authentication locally.
- Implementing AI-driven fairness and safety checks.
Achievements
We’re proud to have:
- Combined VISA for secure fund handling
- Integrated Gemini AI for chat moderation
- Delivered a safe, nostalgic, kid-friendly marketplace
What's Next
We're going to launch Swappy on IOS and Android!

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