How to use CoinMarketCap API — a practical guide
If you're here, you probably want working code in five minutes. That's exactly what this guide does.
Five steps to get started
- 1Register at pro.coinmarketcap.com for a key.
- 2Send header X-CMC_PRO_API_KEY.
- 3Call /v1/cryptocurrency/quotes/latest.
Shortest snippet that will actually run
curl -H "X-CMC_PRO_API_KEY: YOUR_KEY" \
"https://pro-api.coinmarketcap.com/v1/cryptocurrency/quotes/latest?symbol=BTC,ETH&convert=ILS"Common mistakes (the honest list)
Store history yourself — the basic plan returns no history.
Use convert=ILS — no manual conversion.