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Currencylayer 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 Currencylayer API if you want HTTPS.
  • Choose Fixer API for its data: Exchange rates and currency conversion.

Side by side

Currencylayer APIFixer API
What it doesExchange rates and currency conversion.Exchange rates and currency conversion.
ProviderCurrencylayerFixer API
API keyRequiredRequired
HTTPSYesNo
CORS (browser calls)UnknownUnknown
Status todayOnline · 1175 msOnline · 991 ms
Uptime (30 days)UpUp
Developer ratingNot rated yetNot rated yet
PriceFree / free tierFree / free tier
Currencylayer docs ↗Fixer docs ↗

About each API

Currencylayer logoCurrencylayer API

Exchange rates and currency conversion.

Free and startup-friendly currency converter JSON API for real-time and historical exchange rates - reliable and accurate, supporting 168 world currencies.

Strengths

  • 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.

Currencylayer vs Fixer FAQ

Do Currencylayer API and Fixer API need an API key?

Both require authentication (apiKey and apiKey).

More comparisons

Currencylayer API alternatives · Fixer API alternatives · best Currency Exchange APIs