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Marketstack API vs Twelve Data API

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

The verdict

  • On access and reliability they're level, so pick by the data you need:
  • Marketstack API: Real-Time, Intraday & Historical Market Data API.
  • Twelve Data API: Stock market data (real-time & historical).

Side by side

Marketstack APITwelve Data API
What it doesReal-Time, Intraday & Historical Market Data API.Stock market data (real-time & historical).
Providermarketstack.comTwelve Data
API keyRequiredRequired
HTTPSYesYes
CORS (browser calls)UnknownUnknown
Status todayOnline · 964 msOnline · 836 ms
Uptime (30 days)UpUp
Developer ratingNot rated yetNot rated yet
PriceFree / free tierFree / free tier
Marketstack docs ↗Twelve Data docs ↗

About each API

Marketstack logoMarketstack API

Real-Time, Intraday & Historical Market Data API.

Access free stock data API offering real-time and historical market data for global exchanges. Marketstack provides fast, reliable stock price API solutions.

Strengths

  • HTTPS

Ratings, reviews and FAQ →

Twelve Data logoTwelve Data API

Stock market data (real-time & historical).

Try Twelve Data financial APIs for free with instant access to stock, forex, cryptocurrency, and fundamental market data. Real time, historical, and EOD data.

Strengths

  • HTTPS

Ratings, reviews and FAQ →

How to choose between them

  • Prototyping or a tutorial? Pick the one that needs no API key (neither does, so compare their free tiers).
  • 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.

Marketstack vs Twelve Data FAQ

Do Marketstack API and Twelve Data API need an API key?

Both require authentication (apiKey and apiKey).

More comparisons

Marketstack API alternatives · Twelve Data API alternatives · best Finance APIs