Onchain Buddy

Onchain Buddy is an AI assistant that helps beginners understand their blockchain activities. It analyzes transactions, explains them in simple terms, and guides users to learn about blockchain in a safe and proper way.

As your personal blockchain companion he acts as a real-time translator between complex blockchain operations and everyday language.

To making your first token swap or approving a new smart contract, it break down each action in clear and understandable explanations.

How it's made

OnchainBuddy was built using a combination of modern technologies and AI capabilities to create an educational blockchain experience. Here's a detailed breakdown of the technical implementation:

Core Architecture

Frontend Layer

• Built with Next.js for optimal performance and SEO
• Styled using TailwindCSS for rapid UI development
• Enhanced with Material-UI (MUI) components for consistent design
• Framer Motion for smooth animations and transitions
• Real-time updates using React hooks and state management

AI Agent Layer

• Powered by GPT-4 for natural language processing
• Integrated with AgentKit (Coinbase's AI framework) for:
  • Transaction analysis
  • Risk assessment
  • User-level appropriate explanations
  • Learning path optimization

Blockchain Integration

• Built on Base Network for reliable and cost-effective transactions
• Used OnchainKit (Coinbase's toolkit) for seamless wallet integration
• Implemented Ethers.js for blockchain interactions:
  • Transaction monitoring
  • Contract interaction
  • Event parsing
  • Gas estimation

Backend Infrastructure

• Node.js backend with Express
• Prisma for database management
• BaseEther for Base Network RPC calls
• Basescan API for transaction verification

Notable Technical Features

Dynamic Learning System The XP and leveling system uses a complex algorithm that considers:

• Transaction complexity
• Risk assessment scores
• User interaction frequency
• Contract interaction diversity

Real-time Transaction Monitoring Implemented a WebSocket connection to monitor blockchain activities with:

• Instant transaction detection
• Automatic risk assessment
• Real-time notifications
• Custom event parsing

Smart Contract Analysis Created a custom analysis pipeline that:

• Verifies contract security
• Analyzes gas usage patterns
• Monitors value transfers
• Evaluates interaction complexity

Partner Technologies Integration

Base Network

• Utilized Base Network for its optimal performance and lower gas fees
• Leveraged Base's RPC endpoints for reliable blockchain data
• Integrated with Basescan API for transaction verification

Coinbase Tools

• AgentKit: Implemented for AI agent capabilities and blockchain analysis
• OnchainKit: Used for robust wallet integration and transaction handling

Thank's for this geat opportunity, It was a pleasure to learn new technologies :)