SECONDE SECTION (balance checker that receive input from users
HERO SECTION (for the first contact)
one tool ALL CHAINS NO STRESS

MultiChainExplorer – Instantly View Any Crypto Wallet Address

Inspiration

The idea for MultiChainExplorer was born from a simple observation:

Every blockchain has its own explorer, often technical, overloaded with data, and confusing — especially for beginners.

We wanted to create a universal, user-friendly tool that allows anyone to paste a wallet address and instantly see balances across chains, with no need to understand the intricacies of each network.

No more jumping from Etherscan to Solscan to Blockstream.
Just one clear interface. One action. Instant results.

What We Learned

Throughout the development process, we learned how to:

Connect and consume multiple blockchain APIs (BlockCypher, Etherscan, Blockfrost, Helius…)
Manage API keys securely in a frontend-only app using environment variables (VITE_...)
Use the CoinGecko API to fetch real-time token-to-USD conversion
Build a modern UI using React + Vite + TypeScript
Deploy a fully static app with Netlify (no backend needed)
Craft a strong brand identity and storytelling around a Web3 tool

How We Built It

⚙️ Tech Stack

Frontend: React, Vite, TypeScript, TailwindCSS
APIs:
- 🟠 Bitcoin – BlockCypher
- 🔵 Ethereum – Etherscan
- 🟣 Cardano – Blockfrost
- 🔴 Polkadot – Subscan
- 🟢 Sui – JSON RPC
- 🟡 Solana – Helius RPC
USD Conversion: CoinGecko API
Hosting: Netlify (fast, free, CI/CD ready)