shipapis
StarSubmit an APISubmit API

Coinlayer vs Gemini

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

APICoinlayerHEALTHY92GeminiHEALTHY89
Uptime · 30d
Uptime · 90d99.02%99.02%
Uptime · 30d98.3%98.3%
P50 · ms467674
P95 · ms17161865
AuthapiKeynone
CORSyesyes
HTTPSyesyes
Card requirednono
Commercial useunclearunclear
Data licenseUnverifiedUnverified
Free tierFree tier — key may be requiredPublic market data endpoints are keyless and free
Rate limitUnpublishedPublic API throttled per IP (specific numeric limit not confirmed at probe time)
In directory since2026-07-052026-07-05
operationalpartialdownno data

Coinlayer vs Gemini: common questions

Which is more reliable, Coinlayer or Gemini?

Both are neck-and-neck — Coinlayer and Gemini each measure 99.02% uptime over 90 days on our probe schedule. Reliability here is verified from our own scheduled checks; use the 30-day bars above to see which has been steadier lately.

Which is faster, Coinlayer or Gemini?

Coinlayer has the lower median latency in our checks — Coinlayer responds in 467 ms versus Gemini at 674 ms (P50). Tail latency (P95) is in the table above; for most workloads the median is the number that shapes how the API feels.

Do Coinlayer and Gemini need an API key?

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

Can I call Coinlayer and Gemini from the browser?

Yes — both Coinlayer and Gemini 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 Coinlayer and Gemini free for commercial use?

Coinlayer has unclear commercial terms, and Gemini 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.