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btcnode.uk vs Kraken

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

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

btcnode.uk vs Kraken: common questions

Which is more reliable, btcnode.uk or Kraken?

On our scheduled checks, Kraken leads on measured uptime — btcnode.uk at —% versus Kraken 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 Kraken need an API key?

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

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

Only Kraken 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 Kraken free for commercial use?

btcnode.uk has unclear commercial terms, and Kraken 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.