BlockVote

blockchain search engine that lets users instantly explore transactions, wallet addresses, and smart contracts across multiple blockchains. It provides real-time indexing and an intuitive interface for tracking on-chain activity — like token transfers, contract interactions, and wallet histories — all in one place.

Built for transparency and accessibility, BlockScope empowers developers, analysts, and everyday users to understand blockchain data without needing complex tools or APIs.

BlockScope is built using React for the frontend and Node.js/Express for the backend. The app connects to blockchain APIs (like Etherscan, Alchemy, or Infura) to fetch live data on wallet addresses, transactions, and smart contracts.

We use Ethers.js to decode and format blockchain data, then display it through interactive charts and search results. The backend caches queries in a lightweight MongoDB database for faster repeated searches.

For multi-chain support, each network (Ethereum, Polygon, etc.) is handled through its own provider endpoint, making it easy to expand to new blockchains. The UI is built with Tailwind CSS for fast, clean styling.