I build my own products (XPayLabs, GetCiteFlow). I build Web3 and AI products for clients. The two feed each other — products prove capability, client work provides cash flow. This isn't a side hustle. This is how I build a company.
企业级 AI 品牌服务 — 免费检测您品牌的 AI 可见性
高性能 Web3 AI 量化交易 DApp，支持多链和自动化奖励
安全高效的 USDT 智能理财平台，年化高达 18.5%
现代永续期货交易界面，支持实时图表和多倍杠杆
新一代混合交易所，结合 CEX 效率与 DEX 透明度
去中心化现实世界资产代币化平台，专注于可再生能源项目
自托管加密支付基础设施，支持波场 TRON、EVM 链和 SUI
用行为价值取代资本门槛，与 AI 共存的去中心化节点网络协议
去中心化预测市场平台
0xx402 is my portfolio — and my founder's log.
Hi, I'm Neil Yan, an independent founder.
What does that mean? I write the code, I build the products, I talk to clients. I bootstrap products without a salary, then reinvest client revenue back into the products. That's how XPayLabs and GetCiteFlow came to life.
Since 2018, I've spent 8 years deep in Web3 & blockchain, building on a foundation of 17+ years in full-stack development. I've served 2,000+ platform users worldwide and processed 100,000+ on-chain transactions. Here are my 9 representative projects (spanning Web3 & AI):
| Area | Expertise |
|---|---|
| Smart Contracts | Solidity, Vyper, Hardhat, Foundry, OpenZeppelin — audit-grade security |
| Frontend | React, Next.js, Vue, TypeScript, Tailwind CSS — high-performance UI |
| Web3 Integration | Ethereum, Polygon, BNB Chain, Solana, Avalanche, Arbitrum, Optimism & 15+ more |
| Backend | Node.js, Java, Python, MySQL, Redis, Supabase — scalable server architecture |
| Wallet Connection | MetaMask, WalletConnect, Coinbase Wallet, Rabby, Reown AppKit |
| AI Integration | Gemini API, OpenAI, Alibaba Cloud Qwen — AI-powered DApps |
| Database | MySQL, PostgreSQL, Redis, Supabase — reliable data layer |
| DevOps | Vercel, Railway, Docker, Alibaba Cloud, Tencent Cloud, AWS |
If you're interested in the following, let's have a real conversation:
| Opportunity | Details |
|---|---|
| 💰 Investment / Funding | Seeking early-stage investors who believe in the independent founder model. Accelerating XPayLabs & GetCiteFlow product iteration and market expansion |
| 💳 XPayLabs Enterprise | Private deployment, white-label customization, and technical integration for self-hosted crypto payment infrastructure — non-custodial, zero gateway fees |
| 🌐 GetCiteFlow Enterprise | AI Brand Visibility services ($3,999 one-time / $4,999/month). Already serving global brands |
| 🤝 Strategic Partnerships | Wallet integration, exchange liquidity, protocol-level collaboration, co-branded products |
Need a Web3 or AI product built? Here's what I can do for you:
| Service | Description |
|---|---|
| 🌐 Full-Stack DApp Development | From product design & UI/UX to smart contracts and on-chain deployment |
| 📜 Smart Contract Development | Security-first approach, OpenZeppelin standards, fully tested & audited |
| 💰 DeFi Protocol Development | Lending, AMM, yield aggregators, staking — multi-chain ready |
| 🎨 NFT Platform Development | Minting, marketplace, blind boxes, whitelist, royalty mechanisms |
| 📊 Data Dashboard | On-chain data visualization, TVL/volume analytics, admin panels |
| 🔧 Technical Consulting | Web3 architecture, tech stack selection, code review, gas optimization |
| 🚀 Project Deployment | Deploy on Vercel, Railway, Docker, AWS, Alibaba Cloud, Tencent Cloud |
Development Achievements
| Metric | Data |
|---|---|
| Products Released | 9 |
| Supported Chains | 15+ (Full EVM Support) |
| Smart Contract Transactions | 100,000+ |
| Clients Served | 2,000+ |
For investors & partners: If the independent founder model resonates with you — let's talk investment, funding, or strategic partnerships. Reach me on Telegram. I have a solid business plan to share.
For clients: Have a Web3 or AI product you need built? Bring me your idea. I'll take it from 0 to 1.
Telegram is the fastest way to reach me. Please mention your intent (Investment / Partnership / Project Inquiry) 👋
Last updated: July 2026
