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mailboxlayer vs TimeAPI.io

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

APImailboxlayerHEALTHY96TimeAPI.ioHEALTHY87
Uptime · 30d
Uptime · 90d100%100%
Uptime · 30d100%100%
P50 · ms3161040
P95 · ms26343967
AuthapiKeynone
CORSnoyes
HTTPSyesyes
Card requirednono
Commercial useunclearunclear
Data licenseUnverifiedUnverified
Free tierFree tier — key may be requiredFree — limits not published
Rate limitUnpublishedUnpublished
In directory since2026-07-052026-07-05
operationalpartialdownno data

mailboxlayer vs TimeAPI.io: common questions

Which is more reliable, mailboxlayer or TimeAPI.io?

Both are neck-and-neck — mailboxlayer and TimeAPI.io 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 TimeAPI.io?

mailboxlayer has the lower median latency in our checks — mailboxlayer responds in 316 ms versus TimeAPI.io at 1040 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 TimeAPI.io need an API key?

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

Can I call mailboxlayer and TimeAPI.io from the browser?

Only TimeAPI.io 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 TimeAPI.io free for commercial use?

mailboxlayer has unclear commercial terms, and TimeAPI.io 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.