Bargo Congress Trades API vs Frankfurter

Same instrument, two spec sheets — measured, not claimed.

Uptime · 30d
Uptime · 90d—%90.0%
Uptime · 30d—%90.0%
P50 · ms373
P95 · ms4986
Authnonenone
CORSyesyes
HTTPSyesyes
Card requirednono
Commercial useyesyes
Data licensePublic data (ECB reference rates)
Free tierUnlimited — abuse-rate-limited only
Rate limit30 req/window · 29 remainingUnpublished, generous
In directory since2026-07-272026-05-02
operationalpartialdownno data

Bargo Congress Trades API vs Frankfurter: common questions

Which is more reliable, Bargo Congress Trades API or Frankfurter?

On our scheduled checks, Frankfurter leads on measured uptime — Bargo Congress Trades API at —% versus Frankfurter at 90.0% 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 Bargo Congress Trades API and Frankfurter need an API key?

Neither needs a paid key — Bargo Congress Trades API is callable with no signup, and Frankfurter is callable with no signup. Both are quick to prototype with; rate limits still apply.

Can I call Bargo Congress Trades API and Frankfurter from the browser?

Yes — both Bargo Congress Trades API and Frankfurter 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 Bargo Congress Trades API and Frankfurter free for commercial use?

Bargo Congress Trades API allows commercial use on its free tier, and Frankfurter allows commercial use on its free tier. 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.