Etherscan vs Block Lottos

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

Uptime · 30d
Uptime · 90d—%—%
Uptime · 30d—%—%
P50 · ms
P95 · ms
Authnonenone
CORSyesyes
HTTPSyesyes
Card requirednono
Commercial useunclearunclear
Data licenseUnverifiedUnverified
Free tierFree — limits not publishedFree, no key (API docs state no key required)
Rate limitUnpublishedUnpublished
In directory since2026-07-052026-07-05
operationalpartialdownno data

Etherscan vs Block Lottos: common questions

Which is more reliable, Etherscan or Block Lottos?

On our scheduled checks, Block Lottos leads on measured uptime — Etherscan at —% versus Block Lottos 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 Etherscan and Block Lottos need an API key?

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

Can I call Etherscan and Block Lottos from the browser?

Yes — both Etherscan and Block Lottos 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 Block Lottos free for commercial use?

Etherscan has unclear commercial terms, and Block Lottos 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.