Vale - Zero-Interest Lending for Tokenized Validators

Vale enables Tokenized Validator holders to access immediate liquidity through zero-interest loans while letting lenders earn staking rewards.

🌟 Overview

Vale solves the liquidity problem for staked ETH:

• Borrow against your Validator NFT without interest
• Get immediate liquidity without unstaking
• Earn staking rewards as a lender
• Protection against slashing risks

💡 How It Works

For Borrowers

• Deposit your Validator NFT as collateral
• Borrow up to 84% of its value in USDC (e.g., 27 ETH worth for a 32 ETH NFT)
• Repay the same amount to get your NFT back
• No interest payments required
• Staking rewards are used to compensate lenders

For Lenders

• Deposit funds into the ERC4626 vault
• Receive tokens representing your pool share
• Earn a portion of staking rewards from NFTs
• Returns scale with pool utilization
• Protected against validator slashing risks

🛡️ Risk Management

Slashing Protection

If a validator's value drops below 32 ETH:

• Borrower loses NFT access
• Loan is forgiven
• Lenders are protected from validator risks

Reward Distribution

• Staking rewards from NFTs are tracked via Kiln Connect
• Rewards are distributed based on pool share
• Higher pool utilization = higher rewards for lenders

🏗️ Technical Stack

• Smart Contracts: Solidity, ERC4626 vault, ERC721 for NFTs
• Frontend: React, Web3.js
• Backend: Python for reward calculations
• Integration: Kiln Connect for validator data

🚀 Quick Start

Prerequisites

• Node.js (v16+)
• Python 3.8+
• Hardhat
• Metamask

Setup

1. Configure environment variables

cp hardhat/.env.example hardhat/.env
cp python/.env.example python/.env

2. Frontend

cd frontend
npm install
npm run dev

3. Smart Contracts

cd hardhat
npm install
npx hardhat compile

Oracle Contract (Goerli): 0x751FcE6b427d4b27A8a8AF0269bc392242f77008

4. Python Backend

cd python
pip install -r requirements.txt
python3 main.py