The SMS Works API vs UK Bank Holidays
Same instrument, two spec sheets — measured, not claimed.
The SMS Works API vs UK Bank Holidays: common questions
Which is more reliable, The SMS Works API or UK Bank Holidays?
On our scheduled checks, UK Bank Holidays leads on measured uptime — The SMS Works API at —% versus UK Bank Holidays 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 The SMS Works API and UK Bank Holidays need an API key?
UK Bank Holidays needs no key, while The SMS Works API requires a free API key. If you want to start calling without signup, reach for UK Bank Holidays first.
Can I call The SMS Works API and UK Bank Holidays from the browser?
Yes — both The SMS Works API and UK Bank Holidays 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 The SMS Works API and UK Bank Holidays free for commercial use?
The SMS Works API 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.