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Coinbase vs Gemini

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

APICoinbaseHEALTHY78GeminiHEALTHY89
Uptime · 30d
Uptime · 90d100%99.02%
Uptime · 30d100%98.3%
P50 · ms192674
P95 · ms19551865
Authnonenone
CORSyesyes
HTTPSyesyes
Card requirednono
Commercial useunclearunclear
Data licenseUnverifiedUnverified
Free tierFree — limits not publishedPublic 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

Coinbase vs Gemini: common questions

Which is more reliable, Coinbase or Gemini?

On our scheduled checks, Coinbase leads on measured uptime — Coinbase at 100% versus Gemini at 99.02% over 90 days. These are our own probe results, not provider claims; the uptime bars above show the day-by-day record for both.

Which is faster, Coinbase or Gemini?

Coinbase has the lower median latency in our checks — Coinbase responds in 192 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 Coinbase and Gemini need an API key?

Neither needs a paid key — Coinbase is callable with no signup, and Gemini is callable with no signup. Both are quick to prototype with; rate limits still apply.

Can I call Coinbase and Gemini from the browser?

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

Coinbase 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.