ChainRepute

Welcome to ChainRepute 🔗

Project Overview

ChainRepute is a cross-chain reputation protocol that unifies your on-chain reputation across Stellar and Polkadot ecosystems. We scan your on-chain activity, generate an AI-powered score (0-1000), and mint it as non-transferable Soulbound Tokens on both networks.

🏆 ChainRepute Stood Top 10 at Polkadot x Stellar Hacker House 2025 🎉

Tech Stack

Frontend

• React 19 with TypeScript
• Vite
• Tailwind CSS
• Framer Motion
• React Router DOM

Backend

• Node.js/Express with TypeScript

Blockchain & Smart Contracts

• Stellar Soroban (Rust-based smart contracts)
• Polkadot Ink! (Rust-based WASM contracts)
• @stellar/stellar-sdk - Stellar blockchain integration
• @polkadot/api - Polkadot RPC connection

Wallets

• Albedo - Stellar wallet integration
• Talisman/SubWallet - Polkadot wallet integration

Architecture

┌─────────────────────────────────────────────────────────┐
│                    Frontend (React)                     │
│  ┌──────────────┐  ┌──────────────┐  ┌──────────────┐ │
│  │  Reputation  │  │    Wallet    │  │     SBT      │ │
│  │  Dashboard   │  │  Integration │  │   Minting    │ │
│  └──────────────┘  └──────────────┘  └──────────────┘ │
└─────────────────────────────────────────────────────────┘
                         │
                         ▼
┌─────────────────────────────────────────────────────────┐
│              Backend API (Express/Node)                  │
│  ┌──────────────┐  ┌──────────────┐  ┌──────────────┐ │
│  │  AI Engine   │  │   Stellar    │  │   Polkadot   │ │
│  │   Scanner    │  │   Scanner    │  │   Scanner    │ │
│  └──────────────┘  └──────────────┘  └──────────────┘ │
└─────────────────────────────────────────────────────────┘
           │                                    │
           ▼                                    ▼
┌──────────────────────┐         ┌──────────────────────┐
│   Stellar Network    │         │  Polkadot Network    │
│  ┌────────────────┐  │         │  ┌────────────────┐  │
│  │ Soroban SBT    │  │         │  │  Ink! SBT      │  │
│  │   Contract     │  │         │  │  Contract      │  │
│  └────────────────┘  │         │  └────────────────┘  │
│    (Deployed ✅)     │         │   (Ready 🔧)        │
└──────────────────────┘         └──────────────────────┘

Features

• Cross-Chain Scanning - Analyze reputation across Stellar and Polkadot
• AI-Powered Analysis - Smart scoring algorithm (0-1000 scale)
• Soulbound Token Minting - Non-transferable reputation NFTs
• Dual Wallet Integration - Seamless Albedo + Talisman/SubWallet support
• Unified Dashboard - Single interface for both chains
• Tier-Based Rewards - Newcomer → Bronze → Silver → Gold progression

Setup and Installation

1. Clone this repository:

   git clone https://github.com/ayuxy027/ChainRepute.git
   cd ChainRepute

2. Install dependencies:

   npm install

3. Install backend dependencies:

   cd server
   npm install
   cd ..

4. Create a .env file in the root directory:

   # Stellar Configuration
   VITE_STELLAR_NETWORK=testnet
   VITE_STELLAR_RPC=https://soroban-testnet.stellar.org
   VITE_STELLAR_CONTRACT=CDUTJKXOOVPWI6BZZDJDUMZUDBLP2VRBYPLJGF35UK52LKWM6CZXHJNX
   
   # Polkadot Configuration  
   VITE_POLKADOT_RPC=wss://rpc1.paseo.popnetwork.xyz
   VITE_POLKADOT_CONTRACT=<contract-address-after-deployment>
   
   # Backend API
   VITE_API_URL=http://localhost:3001

5. Start the development server:

   # Terminal 1 - Start backend
   cd server
   npm run dev
   
   # Terminal 2 - Start frontend
   npm run dev

Links & Resources

• Live Demo: https://chainrepute.vercel.app/
• GitHub Repository: https://github.com/ayuxy027/ChainRepute
• Smart Contract Addresses:
  • Stellar Soroban SBT (Testnet): CDUTJKXOOVPWI6BZZDJDUMZUDBLP2VRBYPLJGF35UK52LKWM6CZXHJNX
  • Polkadot Ink! SBT (Pop Network Testnet): Awaiting deployment

Contributing

Contributions are welcomed! 😁

Let's keep the spirit of open source alive!

Important

• Please follow the project's license terms before redistributing or modifying.
• Creating something from scratch takes a lot of hard work, and I hope you respect that. 😄
• If you have any questions or need permission for something specific, feel free to reach out.

Contact

If you have any inquiries or suggestions, please reach out:

• Email: ayush421301@gmail.com
• X (Twitter): ayuxy027
• GitHub: ayuxy027

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Built for Polkadot x Stellar Hacker House 2025 🎉

Unifying Web3 reputation, one chain at a time.