expand.network
Led the development of the Expand Playground, an interactive API documentation and testing platform that streamlined how developers integrate with blockchain networks. Organized 178 APIs into intuitive categories, created interactive testing environments, and developed hands-on tutorials that guide developers through complex Web3 integrations.
API Documentation
Interactive Blockchain API Explorer
Designed and built a comprehensive documentation platform for 178 blockchain endpoints, featuring real-time API testing, multi-chain support, and WebSocket streaming capabilities.
Key Contributions
Standardized fragmented blockchain API documentation into a unified JSON-based system covering 178 endpoints
Organized APIs into 16 categories including Bridges, DEX Aggregators, Derivatives, Lending & Borrowing, NFTs, Oracles, and Yield Aggregators, plus 4 specialized products with advanced filtering by method, chain, and protocol
Built interactive API testing interface with live response previews and real-time parameter validation
Implemented comprehensive search functionality with auto-completion across endpoint names and descriptions
Developed WebSocket streaming for real-time data (gas prices, trades, transactions)
Integrated comprehensive error handling with contextual messages and status code documentation
Technologies
Developer Experience
Code Generation & Integration Tools
Built developer-focused features including multi-language code generation, request builders, and comprehensive error handling to accelerate blockchain integration.
Key Contributions
Auto-generated code snippets in 5 languages with syntax highlighting and one-click copy
Built live API response preview with sample/production data toggle for risk-free testing
Smart contract parameter type detection with automatic validation
Developed chain-specific parameter routing for 40+ blockchain networks (testnets/mainnets)
API key validation with contextual error messages and troubleshooting guides
Request/response caching for improved performance
Technologies
Use Case Applications
Interactive Use Case Demos
Created interactive demo applications showcasing practical implementations of the API, including portfolio management, transaction tracking, and DeFi analytics tools.
Key Contributions
Built real-time portfolio tracker with automatic USD conversions and Chart.js visualizations
Developed multi-chain transaction explorer supporting 8 blockchains with pagination
Created DeFi pool analytics with interactive OHLCV candlestick/line chart toggle
Implemented sample data mode allowing users to explore features without API credentials
Designed responsive data tables with sorting, filtering, and export functionality
Built comprehensive error handling with fallback to demo data for seamless UX
Technologies
How to Guides
Interactive Developer Tutorials
Created comprehensive step-by-step guides that walk developers through complex blockchain integration workflows, featuring interactive wallets, real-time API testing, and multi-chain demonstrations.
Key Contributions
Integrated WalletConnect AppKit for seamless wallet connectivity across multiple chains
Implemented real-time form synchronization with persistent state across multi-step workflows
Created dynamic protocol detection that auto-configures endpoints for 14 blockchain networks
Developed 6-step DeFi workflows for lending, swapping, and cross-chain bridging
Built transaction monitoring with on-chain confirmation tracking and explorer integration
Engineered graceful error recovery with detailed troubleshooting and one-click reset
Technologies
Interested in blockchain development?
Let's Build Together