May 25, 2026
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Crypto Wallet Extension
Completed

Crypto Wallet Extension

$5,000+
2-3 months
Malaysia
2-5
Service categories
Service Lines
Blockchain
Web Development
Domain focus
Technology

Challenge

+ Making sure wallets are safely stored on devices, with access limited to their owners. It needs to combine a multitude of security technologies customized according to each platform (iOS, Android, Web) ensuring a seamless experience for the user. Further, passwords should not be stored in the devices and should be demanded to be entered each time the application is utilized.

+ Building a system to display real-time transaction history based on user activities while synchronizing data with the blockchain. This involves handling large amounts of data from multiple blockchains.

+ Enabling users to add, remove, and edit multiple wallets and networks while supporting custom tokens. This requires flexible scalability and a user-friendly interface.

+ Building a synchronized and compatible system between the web client and Chrome extension, enabling users to perform actions similar to MetaMask. This is highly complex due to the need for seamless interaction between two different platforms. 

Solution

๐Ÿ—ธ Integrate blockchain APIs to fetch real-time transaction data.

๐Ÿ—ธ Use local databases to temporarily store transaction history and synchronize with the blockchain when connected.

๐Ÿ—ธ Optimize blockchain queries to reduce load and improve response speed.

๐Ÿ—ธ Develop a modular wallet and network management system, allowing easy addition of new chains or custom tokens without major modifications.

๐Ÿ—ธ Integrate EIP-155 to support multiple EVM networks and popular token standards like ERC-20 and ERC-721.

๐Ÿ—ธ Provide intuitive guides and interfaces to help users manage wallets and tokens effortlessly.

๐Ÿ—ธ Develop a communication bridge using WebSocket or Message Passing API to connect the web client with the Chrome extension.

๐Ÿ—ธ Synchronize wallet states and transactions in real-time between both platforms.

๐Ÿ—ธ Like with new modules, test the theme in a local or staging environment before deploying it to production to avoid errors.

Results

๐Ÿ—ธ Send and receive features by wallet address or QR code

๐Ÿ—ธ Connect to Zchains Wallet Extension

๐Ÿ—ธ Integrated swap functionality for trading Ethereum and other tokens directly within the wallet

๐Ÿ—ธ Transaction history

๐Ÿ—ธ Advanced encryption and private key protection