International Journal of Scientific Research and Engineering Development

Web3.0 has introduced a new way of building internet applications that operate without a central authority. Unlike traditional web systems that depend on centralized servers and databases, decentralized applications (DApps) provide users with greater privacy, transparency, and control over their data. This project presents a Web3.0-based decentralized application that allows users to send and receive cryptocurrency transactions securely using the Ethereum blockchain. The application combines React.js for the user interface, Solidity for the smart contract logic, and MetaMask for blockchain wallet integration. Each transaction is recorded on the blockchain, ensuring data integrity and immutability. By using smart contracts, the system eliminates the need for intermediaries, reduces security risks, and promotes trust between users. This paper explains the design, architecture, and implementation of the DApp, highlighting how blockchain technology can enhance transparency and security in web-based applications.

Girish.M, Harini.R, Gana Priya.V, Shilpa Mangesh Pande,"MetaChain: Building a Web 3.0 Ecosystem with Blockchain and Wallet Interoperability in Banking Sector" International Journal of Scientific Research and Engineering Development, V9(1): Page(326-331) Jan-Feb 2026. ISSN: 2581-7175. www.ijsred.com. Published by Scientific and Academic Research Publishing.