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Etherscan vs Gemini

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

APIEtherscanHEALTHY92GeminiHEALTHY89
Uptime · 30d
Uptime · 90d99.02%99.02%
Uptime · 30d100%98.3%
P50 · ms660674
P95 · ms25361865
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

Etherscan vs Gemini: common questions

Which is more reliable, Etherscan or Gemini?

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

Etherscan has the lower median latency in our checks — Etherscan responds in 660 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 Etherscan and Gemini need an API key?

Neither needs a paid key — Etherscan 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 Etherscan and Gemini from the browser?

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

Etherscan 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.