NDBC Buoy Data API vs Storm Glass Marine Weather

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

Uptime · 30d
Uptime · 90d84.3%100%
Uptime · 30d73.3%100%
P50 · ms575238
P95 · ms10682729
AuthnoneapiKey
CORSnoyes
HTTPSyesyes
Card requirednono
Commercial useunclearunclear
Data licenseUnverifiedUnverified
Free tierFree — limits not publishedFree tier — API key required
Rate limitUnpublishedUnpublished
In directory since2026-07-052026-07-05
operationalpartialdownno data

NDBC Buoy Data API vs Storm Glass Marine Weather: common questions

Which is more reliable, NDBC Buoy Data API or Storm Glass Marine Weather?

On our scheduled checks, Storm Glass Marine Weather leads on measured uptime — NDBC Buoy Data API at 84.3% versus Storm Glass Marine Weather at 100% 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, NDBC Buoy Data API or Storm Glass Marine Weather?

Storm Glass Marine Weather has the lower median latency in our checks — NDBC Buoy Data API responds in 575 ms versus Storm Glass Marine Weather at 238 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 NDBC Buoy Data API and Storm Glass Marine Weather need an API key?

NDBC Buoy Data API needs no key, while Storm Glass Marine Weather requires a free API key. If you want to start calling without signup, reach for NDBC Buoy Data API first.

Can I call NDBC Buoy Data API and Storm Glass Marine Weather from the browser?

Only Storm Glass Marine Weather 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 Storm Glass Marine Weather free for commercial use?

NDBC Buoy Data API has unclear commercial terms, and Storm Glass Marine Weather 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.