Frankfurter vs IBANforge
Same instrument, two spec sheets — measured, not claimed.
Frankfurter vs IBANforge: common questions
Which is more reliable, Frankfurter or IBANforge?
On our scheduled checks, IBANforge leads on measured uptime — Frankfurter at —% versus IBANforge at —% over 90 days. These are our own probe results, not provider claims; the uptime bars above show the day-by-day record for both.
Do Frankfurter and IBANforge need an API key?
Neither needs a paid key — Frankfurter is callable with no signup, and IBANforge is callable with no signup. Both are quick to prototype with; rate limits still apply.
Can I call Frankfurter and IBANforge from the browser?
Yes — both Frankfurter and IBANforge send CORS headers over HTTPS, so front-end code can fetch either directly with no backend proxy. That makes them easy to swap in a client-side app while you compare responses.
Are Frankfurter and IBANforge free for commercial use?
Frankfurter allows commercial use on its free tier, and IBANforge has unclear commercial terms. We track service terms and the data license as separate fields — see the Commercial use and Data license rows above, and confirm both before shipping either in a paid product.