Inspiration ๐ก
Growing up in Latin America, we witnessed firsthand how traditional banking systems exclude millions of families from financial services. The cultural practice of "tandas" (rotating savings groups) has been the backbone of family finances for generations, yet it remains offline and vulnerable to fraud. We were inspired to bridge this gap by combining the trust and community spirit of tandas with the transparency and security of blockchain technology. StarkPays was born from the vision of democratizing financial access while preserving cultural traditions that have sustained Latin American families for decades. ๐ฒ๐ฝ๐ช
What it does โก
StarkPays is a Progressive Web App (PWA) that revolutionizes family finances in Latin America using Starknet blockchain.
Our platform offers:
๐ธ Gasless Payments: Instant, zero-fee transactions powered by AVNU's gasless infrastructure ๐ค Digital Tandas: Collaborative savings groups with smart contracts ensuring transparency and trust ๐ฆ Family Vaults: Secure multi-signature wallets for family financial management ๐ค AI Fraud Protection: OpenAI-powered detection system that analyzes transaction patterns to prevent fraud ๐ฎ Gaming Integration: Gamified savings experiences to encourage financial literacy ๐ Privacy Features: Zero-knowledge proofs for transaction privacy while maintaining compliance The PWA works like a native mobile app, eliminating barriers to access for users without smartphones or app stores. ๐ฑโจ
How we built it ๐ ๏ธ
Frontend: Next.js 15 with TypeScript, Tailwind CSS, and Radix UI components Blockchain: Starknet smart contracts written in Cairo for payment processing and tanda management Authentication: Clerk for secure user management and wallet integration Payments: Chipi Pay integration for traditional payment methods and AVNU for gasless transactions AI: OpenAI API for fraud detection and smart routing PWA: Next-PWA for mobile app functionality Deployment: Vercel for production hosting
Key Integrations:
โก Starknet React for blockchain interactions ๐ณ Chipi Pay for fiat on/off ramps ๐ AVNU for gasless transactions ๐ Clerk for authentication ๐ค OpenAI for AI features
Challenges we ran into ๐
๐ฑ PWA Complexity: Implementing a full-featured PWA that works seamlessly across devices while maintaining blockchain functionality โฝ Gasless Integration: Configuring AVNU's gasless infrastructure with our payment flows ๐ Smart Contract Security: Ensuring robust security for family vaults and tanda contracts ๐ Cross-Platform Compatibility: Making the app work consistently across different browsers and devices ๐ค AI Integration: Training the fraud detection system to understand Latin American payment patterns ๐ฅ User Experience: Balancing blockchain complexity with user-friendly interfaces for non-technical users
Accomplishments that we're proud of ๐
โ First PWA payment platform specifically designed for Latin American family finances โ Successful deployment on Vercel with full PWA functionality โ Complete smart contract suite for payments, tandas, and family vaults โ AI-powered fraud protection using OpenAI integration โ Gasless transaction implementation reducing user friction โ Cultural preservation by digitizing traditional tandas while maintaining their essence โ Mobile-first design that works on any device without app store dependencies โ Multi-language support with Spanish localization
What we learned ๐
๐ Cultural Sensitivity: Understanding the deep-rooted trust mechanisms in Latin American financial practices ๐ฑ PWA Development: The complexity of building blockchain-enabled PWAs that perform like native apps โก Starknet Integration: Leveraging Starknet's account abstraction for better user experiences ๐ค AI in Finance: How machine learning can enhance traditional fraud detection in culturally-specific contexts ๐ฅ User Research: The importance of preserving familiar financial patterns while introducing innovation ๐ Blockchain UX: Balancing decentralization benefits with user-friendly interfaces
What's next for StarkPays ๐
Short-term (3-6 months):
๐งช Launch beta testing with 100 Latin American families โฟ Implement Bitcoin integration for cross-border remittances ๐ฎ Add more gaming mechanics for financial literacy ๐ก๏ธ Expand AI fraud detection capabilities
Medium-term (6-12 months):
๐ Scale to 10,000+ active users across Mexico, Colombia, and Argentina ๐ฆ Integrate with local banks for seamless fiat on/off ramps ๐ Launch educational programs about blockchain and financial inclusion ๐ค Develop partnerships with local financial institutions
Long-term (1-2 years):
๐ Expand across all Latin American countries ๐ฐ Launch micro-lending features using family credit scores ๐๏ธ Integrate with government social programs ๐ Become the leading financial platform for Latin American families ๐ Explore DeFi integrations for yield generation on family savings
Technical Roadmap:
๐ Multi-chain support (Ethereum, Polygon) ๐ Advanced privacy features with zero-knowledge proofs ๐ฑ Mobile app versions for iOS and Android ๐๏ธ Integration with central bank digital currencies (CBDCs) ๐ Advanced analytics dashboard for family financial health
StarkPays aims to become the financial backbone for millions of Latin American families, combining the best of traditional community finance with cutting-edge blockchain technology. ๐ช๐
Built With
- accountabstraction
- cairo
- chipipay
- clerk
- jwt
- next
- node.js
- openia
- openzepellin
- reac
- scarb
- starknet
- tailwind
- typescript
- vitest
- zero-knowledge
Log in or sign up for Devpost to join the conversation.