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btcnode.uk vs OpenSea

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

APIbtcnode.ukNEW—OpenSeaNEW—
Uptime · 30d
Uptime · 90d—%—%
Uptime · 30d—%—%
P50 · ms——
P95 · ms——
AuthnoneapiKey
CORSnoyes
HTTPSyesyes
Card requirednono
Commercial useunclearunclear
Data licenseUnverifiedUnverified
Free tierFree — limits not publishedFree tier — API key required
Rate limitUnpublishedUnpublished
In directory since2026-07-052026-07-05
operationalpartialdownno data

btcnode.uk vs OpenSea: common questions

Which is more reliable, btcnode.uk or OpenSea?

On our scheduled checks, OpenSea leads on measured uptime — btcnode.uk 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 btcnode.uk and OpenSea need an API key?

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

Can I call btcnode.uk and OpenSea from the browser?

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

Are btcnode.uk and OpenSea free for commercial use?

btcnode.uk 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.