mailboxlayer vs Nager.Date

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

Uptime · 30d
Uptime · 90d100%100%
Uptime · 30d100%100%
P50 · ms31658
P95 · ms2634553
AuthapiKeynone
CORSnoyes
HTTPSyesyes
Card requirednono
Commercial useunclearunclear
Data licenseUnverifiedUnverified
Free tierFree tier — key may be requiredFree, no key
Rate limitUnpublishedUnpublished
In directory since2026-07-052026-07-05
operationalpartialdownno data

mailboxlayer vs Nager.Date: common questions

Which is more reliable, mailboxlayer or Nager.Date?

Both are neck-and-neck — mailboxlayer and Nager.Date 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 Nager.Date?

Nager.Date has the lower median latency in our checks — mailboxlayer responds in 316 ms versus Nager.Date at 58 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 Nager.Date need an API key?

Nager.Date needs no key, while mailboxlayer requires a free API key. If you want to start calling without signup, reach for Nager.Date first.

Can I call mailboxlayer and Nager.Date from the browser?

Only Nager.Date 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 Nager.Date free for commercial use?

mailboxlayer has unclear commercial terms, and Nager.Date 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.