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Blockchain vs Gemini

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

APIBlockchainHEALTHY95GeminiHEALTHY89
Uptime · 30d
Uptime · 90d99.02%99.02%
Uptime · 30d98.3%98.3%
P50 · ms445674
P95 · ms11141865
AuthapiKeynone
CORSnoyes
HTTPSyesyes
Card requirednono
Commercial useunclearunclear
Data licenseUnverifiedUnverified
Free tierFree tier — key may be requiredPublic market data endpoints are keyless and free
Rate limitRetry-After: 47655sPublic API throttled per IP (specific numeric limit not confirmed at probe time)
In directory since2026-07-052026-07-05
operationalpartialdownno data

Blockchain vs Gemini: common questions

Which is more reliable, Blockchain or Gemini?

Both are neck-and-neck — Blockchain 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, Blockchain or Gemini?

Blockchain has the lower median latency in our checks — Blockchain responds in 445 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 Blockchain and Gemini need an API key?

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

Can I call Blockchain and Gemini from the browser?

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

Are Blockchain and Gemini free for commercial use?

Blockchain 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.