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CoinGecko vs Frankfurter

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

APICoinGeckoDEGRADED—FrankfurterHEALTHY—
Uptime · 30d
Uptime · 90d—%—%
Uptime · 30d—%—%
P50 · ms——
P95 · ms——
AuthapiKeynone
CORSnoyes
HTTPSyesyes
Card requirednono
Commercial useunclearyes
Data licenseProprietary — attribution requiredPublic data (ECB reference rates)
Free tier10k calls/mo demo key, no cardUnlimited — abuse-rate-limited only
Rate limit~30/min, tightens under loadUnpublished, generous
In directory since2026-05-022026-05-02
operationalpartialdownno data

CoinGecko vs Frankfurter: common questions

Which is more reliable, CoinGecko or Frankfurter?

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

Frankfurter needs no key, while CoinGecko requires a free API key. If you want to start calling without signup, reach for Frankfurter first.

Can I call CoinGecko and Frankfurter from the browser?

Only Frankfurter is browser-friendly — it returns CORS headers over HTTPS. CoinGecko needs a server-side call or proxy, so factor that into which one fits a front-end project.

Are CoinGecko and Frankfurter free for commercial use?

CoinGecko has unclear commercial terms, 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.