CoinMarketCap API
CoinMarketCap API
CoinMarketCap (CMC) API provides cryptocurrency and exchange market data — one of crypto's most authoritative sources (Binance-acquired since 2020).
Most authoritative brand in industry ("CoinMarketCap ranking" is the standard)
Small free tier quota
Sign up at pro.coinmarketcap.com for a free key. GET /v1/cryptocurrency/listings/latest with X-CMC_PRO_API_KEY header for coin listing.
Uptime · 30-day window
About this API
CoinMarketCap is a crypto market data pioneer founded in 2013, long the de-facto ranking standard for the crypto industry — "CMC top 100" is a near-consensus term in crypto. Acquired by world's largest exchange Binance for ~$400M in 2020, raising neutrality discussions (would CMC rankings favor Binance-listed coins). API covers: coin list + real-time prices, exchange list + volumes, global market metrics (total market cap, BTC dominance), per-coin metadata, derivatives markets, NFT data, etc. Free Basic tier 333/day is enough for prototypes; commercial use: Hobbyist ($29/month) or Startup ($79/month).
What you can build
- 1Crypto media market displays
- 2Exchange traffic analysis
- 3Coin ranking widgets
- 4Historical market cap research
- 5NFT trend data
Strengths & limitations
Strengths
- Most authoritative brand in industry ("CoinMarketCap ranking" is the standard)
- Free tier 333/day, hobbyist 10k/month
- Accurate and deep historical data
Limitations
- Small free tier quota
- Neutrality questioned post-Binance acquisition (some users prefer CoinGecko)
Example request
curl https://coinmarketcap.com/<endpoint> \
-H "Authorization: Bearer $API_KEY"
# Some providers use X-Api-Key instead — verify in the docs.Getting started
Sign up at pro.coinmarketcap.com for a free key. GET /v1/cryptocurrency/listings/latest with X-CMC_PRO_API_KEY header for coin listing.
FAQ
CMC vs. CoinGecko?+
Need "CMC authoritative ranking" for marketing: CMC. Want more generous free tier or care about independent neutrality: CoinGecko.
Is free tier enough for commercial?+
333/day isn't enough for website widgets. At least Hobbyist tier recommended.
Technical details
- Auth type
- api_key
- Pricing
- freemium
- Rate limit
- Basic free: 333/day. Hobbyist: 10k/月. Pro: 30+ /分
- Protocols
- REST
- SDKs
- python, javascript, go, java, php
- Response time
- 138 ms
- Last health check
- 5/12/2026, 7:37:13 AM