Ntropy Transaction API v1 vs UK Bank Holidays

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

Uptime · 30d
Uptime · 90d98.0%100%
Uptime · 30d96.7%100%
P50 · ms1223221
P95 · ms44841045
Authnonenone
CORSnoyes
HTTPSyesyes
Card requirednono
Commercial useunclearyes
Data licenseUnverifiedOpen Government Licence v3.0
Free tierFree — limits not publishedFree, no key
Rate limitUnpublishedUnpublished
In directory since2026-07-052026-07-05
operationalpartialdownno data

Ntropy Transaction API v1 vs UK Bank Holidays: common questions

Which is more reliable, Ntropy Transaction API v1 or UK Bank Holidays?

On our scheduled checks, UK Bank Holidays leads on measured uptime — Ntropy Transaction API v1 at 98.0% versus UK Bank Holidays at 100% 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, Ntropy Transaction API v1 or UK Bank Holidays?

UK Bank Holidays has the lower median latency in our checks — Ntropy Transaction API v1 responds in 1223 ms versus UK Bank Holidays at 221 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 Ntropy Transaction API v1 and UK Bank Holidays need an API key?

Neither needs a paid key — Ntropy Transaction API v1 is callable with no signup, and UK Bank Holidays is callable with no signup. Both are quick to prototype with; rate limits still apply.

Can I call Ntropy Transaction API v1 and UK Bank Holidays from the browser?

Only UK Bank Holidays is browser-friendly — it returns CORS headers over HTTPS. Ntropy Transaction API v1 needs a server-side call or proxy, so factor that into which one fits a front-end project.

Are Ntropy Transaction API v1 and UK Bank Holidays free for commercial use?

Ntropy Transaction API v1 has unclear commercial terms, and UK Bank Holidays allows commercial use on its free tier. 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.