CoinCap API — Free Public Cryptocurrency Data API

🚀 Quick Start Guide

Here's a simple JavaScript example to fetch real-time cryptocurrency data:

// CoinCap API Example
const response = await fetch('https://api.coincap.io/v2/assets', {
  method: 'GET',
  headers: {
    'Content-Type': 'application/json'
  }
});
const data = await response.json();
console.log(data);

Why Use CoinCap API?

This powerful RESTful API provides developers with:

• Real-time pricing from global cryptocurrency exchanges
• Market capitalization data for 2,000+ digital assets
• Historical performance metrics with customizable timeframes
• Simple RESTful integration for any tech stack
• Multi-format support (JSON/XML) for easy implementation

👉 Discover advanced API features for institutional-grade market data.

Key Benefits

1. Comprehensive Coverage
   Track prices, volumes, and market trends across major exchanges like Binance and Coinbase.
2. Developer-Friendly
   Clear documentation with code samples in 7+ programming languages.
3. Reliable Infrastructure
   99.9% uptime with enterprise-grade API rate limits.

Practical Implementation

fetch('https://api.coincap.io/v2/assets')
  .then(response => response.json())
  .then(data => {
    console.log('Current Market Data:', data);
  })
  .catch(error => {
    console.error('API Error:', error);
  });

Frequently Asked Questions

What's the rate limit for CoinCap API?

The free tier allows 100 requests/minute with optional paid plans for higher limits.

How frequently is data updated?

Prices refresh every 10 seconds from our global exchange network.

Can I get historical data?

Yes, the /v2/candles endpoint provides historical OHLCV data since 2013.

👉 View complete API documentation for all available endpoints and parameters.

Additional Resources