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BlockCypher vs btcnode.uk

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

APIBlockCypherNEW—btcnode.ukNEW—
Uptime · 30d
Uptime · 90d—%—%
Uptime · 30d—%—%
P50 · ms——
P95 · ms——
Authnonenone
CORSnono
HTTPSyesyes
Card requirednono
Commercial useunclearunclear
Data licenseUnverifiedUnverified
Free tierFree — limits not publishedFree — limits not published
Rate limitRetry-After: 1787sUnpublished
In directory since2026-07-052026-07-05
operationalpartialdownno data

BlockCypher vs btcnode.uk: common questions

Which is more reliable, BlockCypher or btcnode.uk?

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

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

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

Neither sends browser-friendly CORS headers reliably, so call BlockCypher and btcnode.uk from a server or proxy rather than client-side. The CORS and HTTPS rows above show exactly what we detected for each.

Are BlockCypher and btcnode.uk free for commercial use?

BlockCypher has unclear commercial terms, and btcnode.uk 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.