---
language:
- en
tags:
- web3
- blockchain
- dapp
- smart-contracts
- ethereum
- solidity
- defi
- nft
- ai-assistant
---
# CHAINR AI

An intelligent AI assistant that specializes in building decentralized applications (DApps) for Web3. This platform combines conversational AI with automated smart contract deployment, frontend generation, and blockchain integration.

## Features

- 🤖 AI-powered DApp architecture and code generation
- ⛓️ Multi-blockchain support (Ethereum, Polygon, BSC, Arbitrum)
- 📝 Smart contract creation and deployment
- 🎨 Automated frontend generation with Web3 integration
- 💬 Real-time chat interface for development guidance
- 🔐 Wallet connection and authentication
- 🗄️ IPFS integration for decentralized storage
- 📊 Gas optimization and cost estimation
- 🔍 Contract verification and security auditing
- ⚡ One-click deployment pipeline
- 🧪 Automated testing suite generation
- 📱 Mobile-responsive DApp interfaces

## Tech Stack

### Backend
- Node.js with Express
- MongoDB with Mongoose
- Socket.IO for real-time communication
- OpenAI API integration
- Web3.js/Ethers.js for blockchain interaction
- Hardhat for smart contract development
- IPFS client for decentralized storage
- Docker containerization

### Frontend
- React 18 with hooks
- Next.js for SSR and optimization
- Web3Modal for wallet connections
- Wagmi for React Web3 hooks
- React Query for state management
- Tailwind CSS for styling
- Chart.js for analytics dashboards

### Blockchain
- Solidity for smart contracts
- Hardhat development environment
- OpenZeppelin contract libraries
- Chainlink oracles integration
- The Graph for indexing
- MetaMask and WalletConnect support

## Quick Start

### Using Docker (Recommended)

1. Clone the repository:
```bash
git clone https://huggingface.co/chainr-ai/CHAINR
cd CHAINR
```

2. Set up environment variables:
```bash
cp .env.example .env
# Add your API keys and configuration
```

3. Start with Docker Compose:
```bash
docker-compose up -d
```

4. Access the application:
- Frontend: http://localhost:3000
- Backend API: http://localhost:5000
- Documentation: http://localhost:3000/docs

### Manual Installation

1. Install dependencies:
```bash
# Backend
cd backend
npm install

# Frontend
cd ../frontend
npm install

# Smart contracts
cd ../contracts
npm install
```

2. Start MongoDB and Redis:
```bash
docker run -d -p 27017:27017 mongo
docker run -d -p 6379:6379 redis
```

3. Run the development servers:
```bash
# Backend (Terminal 1)
cd backend
npm run dev

# Frontend (Terminal 2)
cd frontend
npm run dev

# Hardhat node (Terminal 3)
cd contracts
npx hardhat node
```

## Environment Variables

```env
# API Keys
OPENAI_API_KEY=your_openai_api_key
INFURA_PROJECT_ID=your_infura_project_id
ETHERSCAN_API_KEY=your_etherscan_api_key
PINATA_API_KEY=your_pinata_api_key

# Database
MONGODB_URI=mongodb://localhost:27017/chainr-ai
REDIS_URL=redis://localhost:6379

# Blockchain
PRIVATE_KEY=your_deployment_private_key
NETWORK=hardhat

# Application
JWT_SECRET=your_jwt_secret
FRONTEND_URL=http://localhost:3000
```

## Usage

### Creating a DApp

1. **Chat with AI**: Describe your DApp idea in natural language
2. **Review Architecture**: AI generates project structure and tech recommendations  
3. **Smart Contracts**: Auto-generated Solidity contracts based on requirements
4. **Frontend Creation**: React components with Web3 integration
5. **Testing**: Automated test suite generation
6. **Deployment**: One-click deployment to chosen blockchain

### Example Conversation

```
User: "Create a NFT marketplace with royalties and auction features"

CHAINR AI: "I'll help you build an NFT marketplace DApp. Let me break this down:

📋 Smart Contracts Needed:
- ERC721 NFT contract with royalty support (EIP-2981)
- Marketplace contract with auction functionality
- Payment splitter for royalty distribution

🎨 Frontend Components:
- NFT gallery and detail pages
- Auction bidding interface
- Artist dashboard
- Wallet integration

Would you like me to start with the smart contracts?"
```

## API Endpoints

### DApp Generation
```
POST /api/dapp/generate
POST /api/dapp/deploy
GET  /api/dapp/:id/status
```

### Smart Contracts
```
POST /api/contracts/compile
POST /api/contracts/deploy
GET  /api/contracts/:address/verify
```

### IPFS Integration
```
POST /api/ipfs/upload
GET  /api/ipfs/:hash
```

## Supported DApp Types

- 🎨 **NFT Marketplaces**: Trading, minting, royalties
- 🏦 **DeFi Protocols**: DEX, lending, staking
- 🎮 **GameFi**: Play-to-earn, NFT games
- 🗳️ **DAOs**: Governance, voting, treasury
- 🏪 **E-commerce**: Decentralized marketplaces
- 📚 **Education**: Certificate verification, courses
- 🏥 **Healthcare**: Medical records, insurance
- 🌱 **Carbon Credits**: Environmental tracking

## Contributing

1. Fork the repository
2. Create a feature branch: `git checkout -b feature/amazing-feature`
3. Commit changes: `git commit -m 'Add amazing feature'`
4. Push to branch: `git push origin feature/amazing-feature`
5. Open a Pull Request

## Security

- Smart contracts audited by OpenZeppelin
- Rate limiting and DDoS protection
- Input sanitization and validation
- Secure wallet connection handling
- Private key encryption at rest

## Support

- 📧 Email: support@chainr-ai.com
- 📖 Website: chainrai.xyz
- 🐛 Issues: [GitHub Issues](https://huggingface.co/chainr-ai/CHAINR/discussions)