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Currency-api vs Frankfurter API

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

The verdict

  • Choose Currency-api if you want faster responses.
  • Choose Frankfurter API if its data fits your use case better; on access and reliability it's level with Currency-api.

Side by side

Currency-apiFrankfurter API
What it doesFree Currency Exchange Rates API with 150+ Currencies & No Rate Limits.Exchange rates, currency conversion and time series.
Providerfawazahmed0Frankfurter
API keyNot neededNot needed
HTTPSYesYes
CORS (browser calls)YesYes
Status todayOnline · 712 msOnline · 1501 ms
Uptime (30 days)UpUp
Developer ratingNot rated yetNot rated yet
PriceFree / free tierFree / free tier
Currency-api docs ↗Frankfurter docs ↗

About each API

Currency-api logoCurrency-api

Free Currency Exchange Rates API with 150+ Currencies & No Rate Limits.

Strengths

  • No API key needed
  • Callable from the browser (CORS)
  • HTTPS

Ratings, reviews and FAQ →

Frankfurter logoFrankfurter API

Exchange rates, currency conversion and time series.

Free, open-source exchange rates API for 223 currencies. Current and historical rates from 105 central banks and official sources. No API key required.

Strengths

  • No API key needed
  • Callable from the browser (CORS)
  • HTTPS

Ratings, reviews and FAQ →

How to choose between them

  • Prototyping or a tutorial? Pick the one that needs no API key (both qualify).
  • 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.

Currency-api vs Frankfurter FAQ

Do Currency-api and Frankfurter API need an API key?

Neither needs an API key; you can call both straight away.

More comparisons

Currency-api alternatives · Frankfurter API alternatives · best Currency Exchange APIs