FingerPay

• 

  Multichain Wallet

• 

  Wallet Overview

• 

  Hardware Solution

Inspiration

The rapid adoption of UPI has transformed digital payments in India, making them fast, simple, and secure. We wanted to bring the same level of convenience to blockchain payments, which are often seen as complex and intimidating. FingerPay was born from the desire to merge the security of biometric authentication with the decentralized, multi-chain world of blockchain, offering users an intuitive way to make payments across Ethereum, Solana, and NeoX.

What it does

FingerPay is a multi-chain wallet application that enables users to seamlessly transact across multiple blockchain networks. It uses fingerprint authentication for wallet creation and payment approval, ensuring security without the need for traditional passwords or private keys. FingerPay also integrates AI to monitor transactions, providing real-time insights and fraud detection, while enabling quick and easy payments through QR codes.

How we built it

We built FingerPay using React Native for the mobile application, integrating Web3.js for Ethereum, Solana.js for Solana, and Tronweb for tron to ensure multi-chain support. Biometric authentication is implemented using native fingerprint APIs for Android and iOS. For real-time monitoring and fraud detection, we incorporated custom AI models. QR code generation and scanning libraries were also integrated for a smooth user experience. The project is deployed via Expo for seamless cross-platform testing and development.

Challenges we ran into

One of the major challenges was achieving smooth interoperability between multiple blockchains. Each blockchain has its own distinct protocols and transaction validation methods, which made it difficult to unify the user experience. Another challenge was optimizing AI models for real-time transaction monitoring without causing latency issues during payments. Lastly, ensuring robust security while maintaining ease of use with biometric authentication required extensive testing and validation.

Accomplishments that we're proud of

We’re proud of successfully integrating Ethereum, Solana, and tron into a single wallet application with fingerprint authentication for secure transactions. Developing a seamless, cross-chain payment solution with real-time AI-driven monitoring was a significant achievement. We also take pride in building an intuitive UI that simplifies blockchain payments, making it accessible to users of all technical backgrounds.

What we learned

We learned the importance of balancing security with usability, especially in the context of blockchain transactions. Through this project, we also gained valuable experience in integrating multiple blockchains, optimizing AI for real-time use, and building a robust mobile application. Working on the hardware integration for retail payments was another learning curve, helping us understand the complexities of bridging digital payments with the physical world.

What's next for FingerPay

In the future, we plan to expand FingerPay’s blockchain support, adding more networks to enhance user flexibility. We also aim to further develop our hardware solution for in-store payments, providing businesses with more advanced features like real-time payment confirmations in multiple languages and cross-border cryptocurrency payments. Additionally, we envision integrating DeFi services, such as lending and yield farming, into the wallet, allowing users and businesses to do more with their digital assets.

Built With

• ether
• etherium
• react-native
• solana
• solidity
• tron