7Timer! vs NDBC Buoy Data API

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

Uptime · 30d
Uptime · 90d100%84.3%
Uptime · 30d100%73.3%
P50 · ms600575
P95 · ms29351068
Authnonenone
CORSnono
HTTPSnoyes
Card requirednono
Commercial useunclearunclear
Data licenseUnverifiedUnverified
Free tierFree — limits not publishedFree — limits not published
Rate limitUnpublishedUnpublished
In directory since2026-07-052026-07-05
operationalpartialdownno data

7Timer! vs NDBC Buoy Data API: common questions

Which is more reliable, 7Timer! or NDBC Buoy Data API?

On our scheduled checks, 7Timer! leads on measured uptime — 7Timer! at 100% versus NDBC Buoy Data API at 84.3% over 90 days. These are our own probe results, not provider claims; the uptime bars above show the day-by-day record for both.

Which is faster, 7Timer! or NDBC Buoy Data API?

NDBC Buoy Data API has the lower median latency in our checks — 7Timer! responds in 600 ms versus NDBC Buoy Data API at 575 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 7Timer! and NDBC Buoy Data API need an API key?

Neither needs a paid key — 7Timer! is callable with no signup, and NDBC Buoy Data API is callable with no signup. Both are quick to prototype with; rate limits still apply.

Can I call 7Timer! and NDBC Buoy Data API from the browser?

Neither sends browser-friendly CORS headers reliably, so call 7Timer! and NDBC Buoy Data API from a server or proxy rather than client-side. The CORS and HTTPS rows above show exactly what we detected for each.

Are 7Timer! and NDBC Buoy Data API free for commercial use?

7Timer! has unclear commercial terms, and NDBC Buoy Data 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.