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UK Bank Holidays vs X (Twitter) API

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

APIUK Bank HolidaysHEALTHY98X (Twitter) APIHEALTHY95
Uptime · 30d
Uptime · 90d100%100%
Uptime · 30d100%100%
P50 · ms231392
P95 · ms10451148
AuthnoneapiKey
CORSyesyes
HTTPSyesyes
Card requirednono
Commercial useyesunclear
Data licenseOpen Government Licence v3.0Unverified
Free tierFree, no keyFree tier — API key required
Rate limitUnpublishedUnpublished
In directory since2026-07-052026-07-05
operationalpartialdownno data

UK Bank Holidays vs X (Twitter) API: common questions

Which is more reliable, UK Bank Holidays or X (Twitter) API?

Both are neck-and-neck — UK Bank Holidays and X (Twitter) 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 X (Twitter) API?

UK Bank Holidays has the lower median latency in our checks — UK Bank Holidays responds in 231 ms versus X (Twitter) API at 392 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 X (Twitter) API need an API key?

UK Bank Holidays needs no key, while X (Twitter) 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 X (Twitter) API from the browser?

Yes — both UK Bank Holidays and X (Twitter) API send CORS headers over HTTPS, so front-end code can fetch either directly with no backend proxy. That makes them easy to swap in a client-side app while you compare responses.

Are UK Bank Holidays and X (Twitter) API free for commercial use?

UK Bank Holidays allows commercial use on its free tier, and X (Twitter) 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.