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Bscscan vs OpenSea

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

APIBscscanNEW—OpenSeaNEW—
Uptime · 30d
Uptime · 90d—%—%
Uptime · 30d—%—%
P50 · ms——
P95 · ms——
AuthapiKeyapiKey
CORSnoyes
HTTPSyesyes
Card requirednono
Commercial useunclearunclear
Data licenseUnverifiedUnverified
Free tierFree tier — API key requiredFree tier — API key required
Rate limitUnpublishedUnpublished
In directory since2026-07-052026-07-05
operationalpartialdownno data

Bscscan vs OpenSea: common questions

Which is more reliable, Bscscan or OpenSea?

On our scheduled checks, OpenSea leads on measured uptime — Bscscan at —% versus OpenSea 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 Bscscan and OpenSea need an API key?

Both ask you to authenticate — Bscscan uses an API key and OpenSea uses an API key. Each key is free to obtain; the Auth and Card-required rows above spell out the signup terms.

Can I call Bscscan and OpenSea from the browser?

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

Are Bscscan and OpenSea free for commercial use?

Bscscan has unclear commercial terms, and OpenSea 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.