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7Timer! vs NDBC Buoy Data API

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

API7Timer!NEW—NDBC Buoy Data APINEW—
Uptime · 30d
Uptime · 90d—%—%
Uptime · 30d—%—%
P50 · ms——
P95 · ms——
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, NDBC Buoy Data API leads on measured uptime — 7Timer! at —% versus NDBC Buoy Data API 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 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.