High-Performance Decentralized Exchange with State Channels for HFT
Sub-millisecond Execution • Cross-Chain Settlement • Enterprise Security
SwappiQ is a next-generation decentralized exchange that leverages state channels for high-frequency trading, enabling sub-millisecond trade execution with periodic on-chain settlement. Built for institutional traders and market makers, SwappiQ delivers CEX-like performance with DEX security guarantees through advanced cryptographic protocols and cross-chain infrastructure.
- State Channels for HFT: Sub-millisecond execution with off-chain trading
- 100,000+ TPS Throughput: Orders matched instantly in-memory
- Cross-Chain Settlement: Trade assets across multiple blockchains
- Hybrid Liquidity: Combines on-chain and off-chain liquidity sources
- Zero-Knowledge Proofs: Privacy-preserving trade verification
- Enterprise Security: Multi-signature wallets and fraud proof system
- WebSocket Real-time: Live market data and order updates
- Comprehensive APIs: REST, WebSocket, and FIX protocol support
SwappiQ supports 49+ blockchain networks for cross-chain trading:
- Ethereum - The leading smart contract platform
- Solana - High-performance blockchain with sub-second finality
- Tron - Fast and low-cost transactions
- BNB Smart Chain - Popular DeFi ecosystem
- Polygon - Ethereum scaling solution
- Arbitrum - Leading Layer 2 for Ethereum
- Optimism - Optimistic rollup solution
- Avalanche - High-throughput smart contracts
- Base - Coinbase's Layer 2 network
We support 40+ additional chains including zkSync, Scroll, Linea, Fantom, Gnosis, Moonbeam, Celo, Metis, Cronos, and many emerging L1s and L2s.
- Jupiter (Solana) - Access to Solana's deepest liquidity
- TronScan (Tron) - Comprehensive TRC-20 token support
- LiFi Protocol - Cross-chain liquidity aggregation
- 0x Protocol - EVM chain liquidity
- Native DEXs - Direct integration with chain-specific DEXs
| Metric | Traditional DEX | State Channels |
|---|---|---|
| Order Latency | 15-30 seconds | <1ms |
| Gas Cost per Trade | $5-50 | $0.10-1 (amortized) |
| Throughput | 10-50 TPS | 100,000+ TPS |
| Settlement Time | Immediate | 5 min batches |
| MEV Protection | Limited | Complete |
| Capital Efficiency | Low | High |
┌─────────────────┐ ┌──────────────────┐ ┌─────────────────┐
│ Frontend │────▶│ API Gateway │────▶│ Matching Engine │
│ (React/Next) │ │ (Express) │ │ (In-Memory) │
└─────────────────┘ └──────────────────┘ └─────────────────┘
│ │
▼ ▼
┌──────────────────┐ ┌─────────────────┐
│ State Channels │ │ Settlement │
│ (HFT) │ │ Engine │
└──────────────────┘ └─────────────────┘
│ │
▼ ▼
┌──────────────────┐ ┌─────────────────┐
│ PostgreSQL │ │ Blockchain │
│ (Database) │ │ (Ethereum) │
└──────────────────┘ └─────────────────┘
-
Channel Opening
- Traders deposit collateral into a multi-signature smart contract
- Both parties sign the initial channel state
- Channel is ready for instant off-chain trading
-
Off-Chain Trading
- Orders matched instantly without blockchain interaction
- Each trade updates the channel state with new balances
- Cryptographic signatures ensure non-repudiation
- Sub-millisecond execution with zero gas fees
-
Settlement
- Periodic settlement of net positions (configurable: 5-60 minutes)
- Only final balances submitted on-chain
- 99% reduction in transaction costs
- Dispute resolution through fraud proofs
- EIP-712 Signatures: Every state update is cryptographically signed
- Fraud Proofs: Challenge invalid states on-chain
- Time Locks: Secure withdrawal periods
- Multi-Signature Control: Requires consensus for settlements
Visit our comprehensive Developer Portal for:
- Interactive API documentation with Swagger UI
- Code examples in multiple languages
- SDKs for JavaScript, Python, Go, Java, and Rust
- Migration guides and best practices
- WebSocket integration guide
- State channel tutorials
- Node.js 18+
- PostgreSQL 14+
- Redis 6+
- Ethereum node (or Infura/Alchemy endpoint)
# Clone the repository
git clone https://github.com/swappiq/swappiq.git
cd swappiq
# Install dependencies
npm install
# Set up environment variables
cp .env.example .env
# Edit .env with your configuration
# Run database migrations
npm run migrate
# Start the development server
npm run dev// Initialize the client
import { SwappiQClient } from '@swappiq/sdk';
const client = new SwappiQClient({
apiKey: 'your_api_key',
environment: 'production'
});
// Submit an order
const order = await client.orders.submit({
pair: 'BTC/USD',
side: 'buy',
type: 'limit',
price: '50000',
quantity: '0.5'
});
// Open a state channel for HFT
const channel = await client.channels.create({
counterparty: '0x...',
collateral: '1000000', // USDC
duration: 86400 // 24 hours
});
// Execute off-chain trades
const trade = await channel.trade({
amount: '100000',
price: '50100'
});POST /api/orders/submit- Submit new orderGET /api/orders/history- Order history with P&LPOST /api/orders/cancel- Cancel orderGET /api/orderbook/{pair}- Real-time order bookGET /api/trades/{pair}- Recent trades
POST /api/channels/create- Open new channelPOST /api/channels/{id}/trade- Execute off-chain tradeGET /api/channels/{id}/state- Current channel statePOST /api/channels/{id}/settle- Settle channel
GET /api/ticker/{pair}- 24h ticker statsGET /api/candles/{pair}- OHLCV dataWS /socket.io- Real-time subscriptions
# Run unit tests
npm test
# Run integration tests
npm run test:integration
# Run E2E tests
npm run test:e2e
# Generate coverage report
npm run test:coverage- Platform Fee: 0.3% on all trades (transparently displayed)
- Gas Fees: Paid by users for on-chain transactions
- State Channel Fees: Minimal fees for channel opening/closing
All fees are clearly shown in quotes before execution. No hidden markups or surprise charges.
- All API endpoints require authentication (JWT)
- State channels use EIP-712 signatures
- Settlement requires multi-signature approval
- Regular security audits by CertiK
Report security issues to: [email protected]
# Build the image
docker build -t swappiq .
# Run with docker-compose
docker-compose up -d# Apply manifests
kubectl apply -f k8s/
# Check deployment status
kubectl get pods -n swappiqWe welcome contributions! Please see our Contributing Guide for details.
- Fork the repository
- Create your feature branch (
git checkout -b feature/amazing-feature) - Commit your changes (
git commit -m 'Add amazing feature') - Push to the branch (
git push origin feature/amazing-feature) - Open a Pull Request
This project is licensed under the MIT License - see the LICENSE file for details.
- LiFi Protocol for cross-chain infrastructure and other DEX partners
- OpenZeppelin for secure contract libraries
- The DeFi community for continuous support
- Discord - Join our community
- Twitter - Follow for updates
- Blog - Technical articles
- YouTube - Video tutorials
- Documentation: docs.swappiq.com
- API Status: status.swappiq.com
- Email: [email protected]
- Enterprise: [email protected]
Built with ❤️ by the SwappiQ Team