How to Scrape Cryptocurrency Prices and Market Data (Free APIs)

Crypto data is readily available through free APIs. No scraping needed.

Free Crypto APIs

CoinGecko (Most Popular, Free)

async function getCryptoPrices(coins) {
  const ids = coins.join(",");
  const url = `https://api.coingecko.com/api/v3/simple/price?ids=${ids}&vs_currencies=usd&include_24hr_change=true`;
  const res = await fetch(url);
  return res.json();
}

const prices = await getCryptoPrices(["bitcoin","ethereum","solana"]);
console.log(prices);
// { bitcoin: { usd: 87000, usd_24h_change: 2.5 }, ... }

CoinCap (Free, No Key)

https://api.coincap.io/v2/assets?limit=10

CryptoCompare (Free Tier)

https://min-api.cryptocompare.com/data/pricemulti?fsyms=BTC,ETH&tsyms=USD

What Data You Get

• Current price in any fiat currency
• 24h/7d/30d price change
• Market cap and volume
• Historical prices (charts)
• Exchange rates between coins

Use Cases

1. Price tracking — build a portfolio tracker
2. Arbitrage — find price differences between exchanges
3. Market analysis — volume trends and correlations
4. Alert systems — notify on price changes
5. Research — historical data for backtesting

Resources

• 9 Free APIs
• Price Monitor
• 77 Free Scrapers

---

Need crypto data extracted or tracked? $20. Email: [e-mail] | Hire me