Founder of XPayLabs & GetCiteFlow. 17+ years full-stack development, 8 years deep in Web3 & blockchain, plus AI product development. Dual-track model: building my own products + delivering for clients. 9 products shipped, 2,000+ platform users, 100,000+ on-chain transactions. Open to investment and partnerships.
Portfolio: www.0xx402.com
| Project | Description |
|---|---|
| GetCiteFlow | Enterprise AI Brand Visibility Platform — free AI visibility scanner, 6-dimension scoring, competitor comparison |
| AI Quant Robot | Quant trading DApp sample, including Gold Digger strategy UI |
| Crypto Earn | USDT earn-product UI DApp sample (delivery demo, not a public APY offering) |
| Perpetual Trading | Perpetual futures trading — BTC, ETH, BNB, SOL, 1-50x leverage |
| Nex Exchange | Next-generation hybrid exchange combining CEX efficiency with DEX transparency |
| Solaris RWA | Real-world asset tokenization platform focused on renewable energy |
| XPayLabs | Self-hosted crypto payment infrastructure — zero fees (network only), no KYC, React + Java SDK |
| Prediction Market | Decentralized prediction market platform |
| Blackhole Protocol | Decentralized node network — 3-tier system, 3x3 matrix, HBP token deflation mechanism |
| Category | Technology |
|---|---|
| Smart Contracts | Solidity, Vyper, Hardhat, Foundry, OpenZeppelin |
| Frontend | React, Next.js, Vue, TypeScript, Tailwind CSS |
| Web3 Integration | Ethers.js, viem, wagmi, Reown AppKit — 15+ chains (Ethereum, Solana, Polygon, Arbitrum, Base…) |
| Backend | Node.js, Java, Python, Express, Spring Boot |
| Database | MySQL, PostgreSQL, Redis, Supabase |
| AI | Google Gemini API, OpenAI, Alibaba Cloud Qwen |
| DevOps | Vercel, Railway, Docker, AWS, Alibaba Cloud, Tencent Cloud |
- DeFi protocols — lending, AMM, yield aggregators
- NFT platforms — minting, marketplace, blind boxes
- Crypto payment gateways — self-hosted, zero-fee, multi-chain
- AI trading systems — quantitative strategies, smart wealth management
- RWA tokenization platforms — real-world assets on-chain
- Prediction markets & hybrid exchanges
- AI brand visibility (GEO) — enterprise services via GetCiteFlow
- Blockchain data dashboards & smart contract development
- Portfolio: www.0xx402.com
- GitHub: github.com/yan253319066
- Telegram: @OS_Blockchain
- Email: yanning-1987@outlook.com
npm install
npm run docs:dev # Dev server (hot reload)
npm run docs:build # Production build → sitemap → RSS
npm run docs:preview # Preview production build