BlockCypher vs btcnode.uk
Same instrument, two spec sheets — measured, not claimed.
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 30.4% versus btcnode.uk at 91.2% over 90 days. These are our own probe results, not provider claims; the uptime bars above show the day-by-day record for both.
Which is faster, BlockCypher or btcnode.uk?
BlockCypher has the lower median latency in our checks — BlockCypher responds in 145 ms versus btcnode.uk at 586 ms (P50). Tail latency (P95) is in the table above; for most workloads the median is the number that shapes how the API feels.
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.