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Glax Weather API vs NDBC Buoy Data API

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

APIGlax Weather APIHEALTHY87NDBC Buoy Data APIDYING83
Uptime · 30d
Uptime · 90d100%84.3%
Uptime · 30d100%73.3%
P50 · ms1004575
P95 · ms25341068
Authnonenone
CORSnono
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

Glax Weather API vs NDBC Buoy Data API: common questions

Which is more reliable, Glax Weather API or NDBC Buoy Data API?

On our scheduled checks, Glax Weather API leads on measured uptime — Glax Weather API 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, Glax Weather API or NDBC Buoy Data API?

NDBC Buoy Data API has the lower median latency in our checks — Glax Weather API responds in 1004 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 Glax Weather API and NDBC Buoy Data API need an API key?

Neither needs a paid key — Glax Weather API 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 Glax Weather API and NDBC Buoy Data API from the browser?

Neither sends browser-friendly CORS headers reliably, so call Glax Weather API 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 Glax Weather API and NDBC Buoy Data API free for commercial use?

Glax Weather API 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.