Aave V3 Data API – Free, Real-Time DeFi Lending Protocol Data

Meta Title: Aave V3 Data API – Free Daily Updated Lending Rates & Reserve Data for DeFi Developers
Meta Description: Access free, real-time Aave V3 lending rates, reserve parameters, and liquidity data across 13+ blockchains. Updated daily via API & JSON. No API key required.

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Overview

The Aave V3 Data API provides public, real-time decentralized finance (DeFi) data from the Aave V3 lending protocol. It includes:

• Lending and borrowing rates
• Reserve configurations
• Liquidity metrics
• Governance change tracking

Data is refreshed daily at midnight UTC using GitHub Actions and hosted for free via GitHub Pages with a global CDN for speed and availability.

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Features

• Daily Data Updates – Automatic updates every 24 hours for consistency.
• Multi-Network Coverage – Ethereum, Polygon, Arbitrum, Optimism, Base, zkSync, Avalanche, and more.
• 190+ Assets Tracked – Detailed reserve parameters for all assets.
• No Keys or Rate Limits – Fetch freely without authentication.
• Multiple Output Formats – HTML for visual analysis, JSON for programmatic use.
• Governance Tracking – Live updates on protocol parameter changes.

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Access Points

Access	URL	Use Case
API Explorer	Explore API	Search & view live endpoints
Sortable Data Tables	View Tables	Quick on-page analysis
Raw JSON Data	Download JSON	Integration in scripts/apps
Governance Dashboard	Monitor Changes	Risk assessment

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Example Usage

Command-Line Query (cURL + jq)

# Fetch all data
curl -s https://th3nolo.github.io/aave-v3-data/aave_v3_data.json -o aave_data.json

# Get USDC supply APY on Ethereum
curl -s https://th3nolo.github.io/aave-v3-data/aave_v3_data.json | \
jq '.networks.ethereum[] | select(.symbol=="USDC") | .current_liquidity_rate'

JavaScript Example

fetch('https://th3nolo.github.io/aave-v3-data/aave_v3_data.json')
  .then(res => res.json())
  .then(data => {
    const highLtvAssets = [];
    for (const [network, assets] of Object.entries(data.networks)) {
      for (const asset of assets) {
        if (asset.loan_to_value > 0.75) {
          highLtvAssets.push({ network, ...asset });
        }
      }
    }
    console.log(highLtvAssets);
  });

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Data Structure

Example JSON output:

{
  "metadata": {
    "last_updated": "ISO_TIMESTAMP",
    "network_summary": {
      "total_active_networks": 13,
      "total_assets": 190
    }
  },
  "networks": {
    "ethereum": [
      {
        "symbol": "USDC",
        "loan_to_value": 0.75,
        "liquidation_threshold": 0.78,
        "current_liquidity_rate": 0.038,
        "current_variable_borrow_rate": 0.050,
        "supply_cap": 381,
        "borrow_cap": 63488,
        "active": true
      }
    ]
  }
}

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Installation & Development

Requirements

• Python 3.x
• GitHub account (if self-hosting)

Setup

git clone https://github.com/th3nolo/aave-v3-data.git
cd aave-v3-data
python aave_fetcher.py --validate

Performance Options:

• --turbo for maximum concurrency
• --ultra-fast for batch RPC calls
• --parallel for standard execution

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Governance & Risk Tracking

Stay informed about governance changes with:

• Governance History JSON
• Health Report JSON

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SEO & Linking Strategy

• Primary Keywords: Aave V3 API, DeFi lending rates, Aave data JSON, blockchain reserve parameters, risk monitoring tools
• Internal Links: Link to USAGE.md for extended usage instructions.
• External Links:
  • Aave V3 Documentation
  • Aave Address Book

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License

MIT License – see LICENSE for details.

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📅 Last Updated: Automatically refreshed daily via GitHub Actions. See JSON metadata for timestamp.