Back to All ProjectsWeb3 Engineering
Web3 Frontend Developer• Independent• 2023
Chain List (ChainNetList)
A comprehensive reference tool for Web3 developers to discover, verify, and automatically add EVM chain parameters (RPC URLs, Chain IDs, currency symbols) to MetaMask and Web3 wallets.
The Problem & Need
Context & Friction
Manually searching and configuring custom RPC endpoints across dozens of emerging Layer 1 and Layer 2 chains often leads to phishing vulnerabilities.
The Engineering Solution
Architectural Response
A curated, searchable directory of verified EVM chains with one-click wallet RPC injection via Ethereum provider APIs.
TECHNICAL OWNERSHIP
Key Engineering Decisions & Outcomes
Implemented one-click wallet integration using standard EIP-3085 `wallet_addEthereumChain` method.
Added latency ping tests for public RPC endpoints.
Designed dark mode interface for blockchain power users.
SYSTEM ARCHITECTURE
Implementation Stack & Data Flow
React with Web3.js / Ethers.js integration and responsive card grids.
Technologies & Frameworks
ReactWeb3.jsEthereumTailwind CSS