mailboxlayer vs UK Bank Holidays
Same instrument, two spec sheets — measured, not claimed.
mailboxlayer vs UK Bank Holidays: common questions
Which is more reliable, mailboxlayer or UK Bank Holidays?
Both are neck-and-neck — mailboxlayer and UK Bank Holidays 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, mailboxlayer or UK Bank Holidays?
UK Bank Holidays has the lower median latency in our checks — mailboxlayer responds in 316 ms versus UK Bank Holidays at 231 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 mailboxlayer and UK Bank Holidays need an API key?
UK Bank Holidays needs no key, while mailboxlayer requires a free API key. If you want to start calling without signup, reach for UK Bank Holidays first.
Can I call mailboxlayer and UK Bank Holidays from the browser?
Only UK Bank Holidays is browser-friendly — it returns CORS headers over HTTPS. mailboxlayer needs a server-side call or proxy, so factor that into which one fits a front-end project.
Are mailboxlayer and UK Bank Holidays free for commercial use?
mailboxlayer 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.