Haust Account Abstraction Wallet
Client: Haust Wallet
QA
Expertise:
Tech Stack:
Business Analyst
DevOps
Backend
UI/UX
PM
Frontend
lonic Solidity Python React
Haust is an innovative DeFi wallet solution that harnesses the power of Account Abstraction (AA) to streamline and simplify users’ DeFi interactions. Designed for cross-platform accessibility, Haust operates on the web, through Telegram mini-apps, and on both iOS and Android, ensuring that users can access financial tools and services with ease from any device.
About the Client:
The goal of the project was to build an advanced, AA-enabled wallet that integrates core DeFi functionality within a single application. This includes token swaps, interaction with AAVE, and multi-network support for top-ups and withdrawals. By embedding DeFi operations directly into the wallet, Haust aims to simplify the user experience while expanding accessibility across platforms.
Project Overview:

Challenges & Objectives

The client's main requirements were:
  • Account Abstraction-Enabled Wallet: Develop a wallet based on Account Abstraction to enhance user experience and streamline token management.
  • DeFi Functionalities: Incorporate seamless token swaps and AAVE lending/borrowing directly within the wallet interface.
  • Cross-Platform Accessibility: Ensure compatibility on the web, Telegram, iOS, and Android.
  • Multi-Network Support: Enable users to conduct transactions, top-ups, and withdrawals across various blockchain networks.
Implementation
The Haust wallet was developed using a range of technologies to support complex DeFi functionality, efficient backend operations, and a seamless user interface:
01
Account Abstraction Integration
Leveraging Solidity, Haust was built to support Account Abstraction, which allowed the wallet to handle complex transaction processes while making operations more intuitive for users.
02
Multi-Network Transactions
Implemented using Solidity for blockchain interaction and Python for backend support, the wallet manages top-ups, withdrawals, and other DeFi operations across multiple networks with minimal friction.
03
AAVE Integration for DeFi Operations
AAVE’s DeFi functionalities were embedded directly within the wallet, enabling lending and borrowing directly from Haust's interface, enhancing user convenience.

04
Responsive Frontend Design
Built with React and Ionic, the front end of the wallet was designed for compatibility on web and mobile, offering a streamlined UI on all platforms.
05
Robust Testing and DevOps
QA, PM, and DevOps teams collaborated closely to ensure seamless deployment and ongoing updates to maintain high availability and reliability of the wallet’s functionalities across platforms.

Outcomes & Business Impact

The Haust wallet achieved its objectives, delivering a versatile DeFi tool that enhanced user accessibility and usability:
  • Seamless User Experience: Account Abstraction provided a smoother, more intuitive experience, especially for DeFi newcomers.
  • Increased Accessibility: Cross-platform compatibility across web, mobile, and Telegram mini-apps broadened access to DeFi.
  • DeFi Simplification: Integrating AAVE functionality directly into the wallet streamlined DeFi operations, removing the need for users to navigate separate DeFi platforms.
Haust’s successful implementation set a new standard for DeFi wallets, empowering users with a highly accessible and powerful tool for managing crypto assets in a secure, flexible, and efficient environment.

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