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Block Lottos vs Blockchain

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

APIBlock LottosNEW—BlockchainNEW—
Uptime · 30d
Uptime · 90d—%—%
Uptime · 30d—%—%
P50 · ms——
P95 · ms——
AuthnoneapiKey
CORSyesno
HTTPSyesyes
Card requirednono
Commercial useunclearunclear
Data licenseUnverifiedUnverified
Free tierFree, no key (API docs state no key required)Free tier — key may be required
Rate limitUnpublishedUnpublished
In directory since2026-07-052026-07-05
operationalpartialdownno data

Block Lottos vs Blockchain: common questions

Which is more reliable, Block Lottos or Blockchain?

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

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

Can I call Block Lottos and Blockchain from the browser?

Only Block Lottos 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 Block Lottos and Blockchain free for commercial use?

Block Lottos has unclear commercial terms, and Blockchain 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.