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NDBC Buoy Data API vs Open-Meteo Archive

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

APINDBC Buoy Data APINEW—Open-Meteo ArchiveNEW—
Uptime · 30d
Uptime · 90d—%—%
Uptime · 30d—%—%
P50 · ms——
P95 · ms——
Authnonenone
CORSnoyes
HTTPSyesyes
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

NDBC Buoy Data API vs Open-Meteo Archive: common questions

Which is more reliable, NDBC Buoy Data API or Open-Meteo Archive?

On our scheduled checks, Open-Meteo Archive leads on measured uptime — NDBC Buoy Data API at —% versus Open-Meteo Archive 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 NDBC Buoy Data API and Open-Meteo Archive need an API key?

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

Can I call NDBC Buoy Data API and Open-Meteo Archive from the browser?

Only Open-Meteo Archive is browser-friendly — it returns CORS headers over HTTPS. NDBC Buoy Data API needs a server-side call or proxy, so factor that into which one fits a front-end project.

Are NDBC Buoy Data API and Open-Meteo Archive free for commercial use?

NDBC Buoy Data API has unclear commercial terms, and Open-Meteo Archive 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.