CoinMarketCap API vs Messari API

Two free Cryptocurrency APIs compared on access, reliability and developer ratings, using data from our daily health checks.

The verdict

Choose CoinMarketCap API for its data: Use CoinMarketCap's crypto API to get the best, most accurate real-time, historical cryptocurrency, DEX and exchange trade data for Bitcoin, Ethereum and more.
Choose Messari API if you want to start without an API key, faster responses.

Side by side

	CoinMarketCap API	Messari API
What it does	Use CoinMarketCap's crypto API to get the best, most accurate real-time, historical cryptocurrency, DEX and exchange trade data for Bitcoin, Ethereum and more.	Provides API endpoints for thousands of crypto assets.
Provider	coinmarketcap.com	messari.io
API key	Required	Not needed
HTTPS	Yes	Yes
CORS (browser calls)	Unknown	Unknown
Status today	Online · 712 ms	Online · 451 ms
Uptime (30 days)	Up	Up
Developer rating	Not rated yet	Not rated yet
Price	Free / free tier	Free / free tier

CoinMarketCap docs ↗Messari docs ↗

CoinMarketCap API

Use CoinMarketCap's crypto API to get the best, most accurate real-time, historical cryptocurrency, DEX and exchange trade data for Bitcoin, Ethereum and more.

Strengths

HTTPS

Ratings, reviews and FAQ →

Messari API

Provides API endpoints for thousands of crypto assets.

Strengths

No API key needed
HTTPS

Ratings, reviews and FAQ →

How to choose between them

Prototyping or a tutorial? Pick the one that needs no API key.
Calling from a web page? You need CORS. Otherwise route requests through your own server or a serverless function.
Going to production? Favour HTTPS, a strong uptime record and a provider with clear rate limits and terms. Check each API's docs before you commit.
Still unsure? Both are free to try: send one request to each and compare the data you get back.

CoinMarketCap vs Messari FAQ

Which needs an API key, CoinMarketCap API or Messari API?

CoinMarketCap API requires an API key; Messari API doesn't, so Messari API is quicker to try.

More comparisons

CoinMarketCap API alternatives · Messari API alternatives · best Cryptocurrency APIs