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Exchangeratesapi.io API vs Fixer API

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

The verdict

  • Choose Exchangeratesapi.io API if you want to call it from browser JavaScript, HTTPS.
  • Choose Fixer API for its data: Exchange rates and currency conversion.

Side by side

Exchangeratesapi.io APIFixer API
What it doesExchange rates with currency conversion.Exchange rates and currency conversion.
ProviderExchange Rates APIFixer API
API keyRequiredRequired
HTTPSYesNo
CORS (browser calls)YesUnknown
Status todayOnline · 908 msOnline · 991 ms
Uptime (30 days)UpUp
Developer ratingNot rated yetNot rated yet
PriceFree / free tierFree / free tier
Exchangeratesapi.io docs ↗Fixer docs ↗

About each API

Exchangeratesapi.io logoExchangeratesapi.io API

Exchange rates with currency conversion.

Power your product with accurate FX rates. Free REST API, JSON output, 60 second updates and historical data back to 1999. Trusted by 100,000+ developers.

Strengths

  • Callable from the browser (CORS)
  • HTTPS

Ratings, reviews and FAQ →

Fixer logoFixer API

Exchange rates and currency conversion.

Access current and historical foreign exchange rates with Fixer API. Get free, lightweight currency conversion for your applications. Click now.

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.

Exchangeratesapi.io vs Fixer FAQ

Do Exchangeratesapi.io API and Fixer API need an API key?

Both require authentication (apiKey and apiKey).

Which can I call from the browser?

Exchangeratesapi.io API supports CORS, so front-end JavaScript can call it directly. Call the other from a server.

More comparisons

Exchangeratesapi.io API alternatives · Fixer API alternatives · best Currency Exchange APIs