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Glax Weather API vs Storm Glass Marine Weather

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

APIGlax Weather APIHEALTHY87Storm Glass Marine WeatherHEALTHY98
Uptime · 30d
Uptime · 90d100%100%
Uptime · 30d100%100%
P50 · ms1004238
P95 · ms25342729
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

Glax Weather API vs Storm Glass Marine Weather: common questions

Which is more reliable, Glax Weather API or Storm Glass Marine Weather?

Both are neck-and-neck — Glax Weather API and Storm Glass Marine Weather each measure 100% uptime over 90 days on our probe schedule. Reliability here is verified from our own scheduled checks; use the 30-day bars above to see which has been steadier lately.

Which is faster, Glax Weather API or Storm Glass Marine Weather?

Storm Glass Marine Weather has the lower median latency in our checks — Glax Weather API responds in 1004 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 Glax Weather API and Storm Glass Marine Weather need an API key?

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

Can I call Glax Weather API and Storm Glass Marine Weather from the browser?

Only Storm Glass Marine Weather is browser-friendly — it returns CORS headers over HTTPS. Glax Weather API needs a server-side call or proxy, so factor that into which one fits a front-end project.

Are Glax Weather API and Storm Glass Marine Weather free for commercial use?

Glax Weather 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.