Multi-Oracle-DeFi

Project Overview

Multi-Oracle-DeFi is a comprehensive DeFi ecosystem integrating multiple Oracle services and DeFi protocols. The platform features three interconnected components: a Lending-Borrowing Protocol, an ERC4626-compliant Vault, and a VRF-powered NFT Minting system, all unified through a common CUSD token standard. The project leverages advanced Web3 technologies including Chainlink's suite of products, OpenZeppelin Defender for automation and monitoring, and Push Protocol for real-time notifications.

Core Features

1. Lending-Borrowing Protocol

Description

Users can deposit ETH as collateral to borrow CUSD tokens. The protocol leverages Chainlink's ETH/USD price feed for accurate collateral valuation, with Push Protocol integration for real-time notifications of key events.

Technical Implementation

• Smart Contracts:
• LendingBorrowing Contract with Push Protocol notifications for deposit, borrow, repay, and withdrawal events
• Chainlink Price Feed integration for real-time ETH/USD pricing
• CUSD (ERC20) token contract with controlled minting mechanisms
• OpenZeppelin Defender integration:
  • Automated interest calculations and borrowed amount updates using Defender Actions
  • Relayer implementation for secure automated transactions
  • Monitoring system for critical protocol metrics and events
• Key Functions:
• Collateral deposit with event notifications
• CUSD borrowing based on collateral value
• Dynamic interest calculation with automated updates
• Collateral withdrawal system
• Owner-authorized interest rate management
• Automated borrowed amount updates for all users through OpenZeppelin Defender

2. ERC4626 Vault

Description

An implementation of the ERC4626Fees standard featuring automated withdrawals through Chainlink Automation and a sophisticated yield distribution system.

Technical Features

• ERC4626 standard compliance with custom fee extensions
• Chainlink Automation integration:
• Automated batch withdrawals based on yield thresholds
• Scheduled yield distribution mechanisms
• Mock yield environment for testing automated features
• ETH to CUSD conversion capabilities
• Flexible fee structure implementation
• Share-based accounting system for yield tracking

3. NFT Minting with Chainlink VRF

Description

A sophisticated NFT minting system utilizing Chainlink VRF for verifiably random attribute generation, with CUSD as the minting currency.

Technical Stack

• Smart contracts with Chainlink VRF V2 integration
• IPFS decentralized storage for metadata and assets.
• Notifications
• CUSD token integration for minting operations
• Automated metadata generation and management

Advanced Technology Stack

Blockchain Infrastructure

• Smart Contracts: Solidity
• Oracle Services:
• Chainlink Price Feeds for real-time asset pricing
• Chainlink VRF V2 for random number generation
• Chainlink Automation for scheduled operations
• Automation & Monitoring:
• OpenZeppelin Defender Actions for automated protocol updates
• OpenZeppelin Defender Relayers for secure transaction execution
• OpenZeppelin Defender Monitors for system oversight
• Network: Sepolia Testnet
• Token Standards: ERC20, ERC4626, ERC721

Frontend Architecture

• React with modular component design
• Web3 Integration:
• wagmi for blockchain state management
• viem for type-safe ethereum interactions
• IPFS integration for decentralized storage
• Push Protocol for real-time DeFi notifications
• Responsive UI with protocol statistics display

Protocol Interoperability

CUSD Token Integration

• Primary borrowing currency in lending protocol
• Vault share representation for yield tracking
• NFT minting currency
• Direct purchase with ETH available through multiple protocol entry points
• Cross-protocol utility enabling seamless movement between features

Contract Deployments (Sepolia Testnet)

• CUSD Token: 0x3d24dA1CB3C58C10DBF2Df035B3577624a88E63A
• Features: Controlled minting, ETH purchase functionality, owner withdrawal capabilities
• LendingBorrowing: 0x1e88e0dc3924D9869A1Ed7d86197341dd459CF48
• Integrated with Push Protocol, Chainlink Price Feeds, and OpenZeppelin Defender.
• NFT Minter : 0x9044B578C1F2F3E9cb3e478FdfB39A75fE2f1997
  • NFT (ERC 721) contract integrated with Chainlink VRF, IPFS, vault and CUSD contracts.
• Vault: 0x002d7Ffa2f24Fb2DCDeB3f29C163fBBb87D8B4c5
• ERC 4626 contract integrated with chainlink automation and CUSD contract.

Live Implementation

Access the DApp at https://multi-oracle-defi.vercel.app/

Contributing

Please refer to contributions.md for development guidelines.

License

This project is licensed under the MIT License. See the LICENSE file for details.