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UK Bank Holidays vs Vonage (Nexmo) API

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

APIUK Bank HolidaysHEALTHY98Vonage (Nexmo) APIHEALTHY94
Uptime · 30d
Uptime · 90d100%100%
Uptime · 30d100%100%
P50 · ms221507
P95 · ms10451019
AuthnoneapiKey
CORSyesno
HTTPSyesyes
Card requirednono
Commercial useyesunclear
Data licenseOpen Government Licence v3.0Unverified
Free tierFree, no keyFree tier — API key required
Rate limitUnpublished10, 120;w=60;name="crd|generic_key^nexmo-gloo.sanity-service-remote-address-120-rpm|remote_address", 10;w=1;name="crd|generic_key^nexmo-gloo.sanity-service-remote-address-10-rps|remote_address" req/window · 9 remaining · resets 1
In directory since2026-07-052026-07-05
operationalpartialdownno data

UK Bank Holidays vs Vonage (Nexmo) API: common questions

Which is more reliable, UK Bank Holidays or Vonage (Nexmo) API?

Both are neck-and-neck — UK Bank Holidays and Vonage (Nexmo) API each measure 100% uptime over 90 days on our probe schedule. Reliability here is verified from our own scheduled checks; use the 30-day bars above to see which has been steadier lately.

Which is faster, UK Bank Holidays or Vonage (Nexmo) API?

UK Bank Holidays has the lower median latency in our checks — UK Bank Holidays responds in 221 ms versus Vonage (Nexmo) API at 507 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 UK Bank Holidays and Vonage (Nexmo) API need an API key?

UK Bank Holidays needs no key, while Vonage (Nexmo) API requires a free API key. If you want to start calling without signup, reach for UK Bank Holidays first.

Can I call UK Bank Holidays and Vonage (Nexmo) API from the browser?

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

Are UK Bank Holidays and Vonage (Nexmo) API free for commercial use?

UK Bank Holidays allows commercial use on its free tier, and Vonage (Nexmo) API 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.