🐋 SmartWhales.ai – Multi-Chain Crypto Portfolio Tracker

A crypto portfolio dashboard built for a Dubai-based client in just 1 day, even though the deadline was 4.

This was my first freelance deal, and it involved building a complete web app that tracks wallet portfolios across six Ethereum-compatible chains.

🔗 Live Site
📂 GitHub Repo

🌐 Supported Chains

• Ethereum
• Binance Smart Chain
• Polygon
• Optimism
• Arbitrum
• Base

🧠 Core Features

• 🧾 Tracks transactions, token balances, swaps
• 🪙 Multi-chain wallet monitoring with Covalent’s GoldRush API
• 🧠 Offchain backend for:
  • Wallet tracking persistence
  • Referral-based user tracking
• ⚙️ Real-time rendering of token holdings and movements
• 🖥 Responsive and clean UI for crypto investors

🛠 Tech Stack

• React.js
• Tailwind CSS
• Covalent GoldRush API
• Node.js + MongoDB (offchain backend)
• Vercel (frontend hosting)

💡 What I Learned

• Efficient use of CovalentHQ’s API for multi-chain data
• Optimizing state management for rapid wallet queries
• Delivering a real-world freelance product under pressure
• Understanding client needs and translating them to clean UX/UI
• Realizing that even your first paid project can be impressive when you take ownership

Proud of this one – shipped it in record time and gave the client more than what they expected. 💼✨