GrünstromIndex vs Storm Glass Marine Weather
Same instrument, two spec sheets — measured, not claimed.
GrünstromIndex vs Storm Glass Marine Weather: common questions
Which is more reliable, GrünstromIndex or Storm Glass Marine Weather?
On our scheduled checks, Storm Glass Marine Weather leads on measured uptime — GrünstromIndex at 73.5% 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, GrünstromIndex or Storm Glass Marine Weather?
Storm Glass Marine Weather has the lower median latency in our checks — GrünstromIndex responds in 1072 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 GrünstromIndex and Storm Glass Marine Weather need an API key?
GrünstromIndex needs no key, while Storm Glass Marine Weather requires a free API key. If you want to start calling without signup, reach for GrünstromIndex first.
Can I call GrünstromIndex and Storm Glass Marine Weather from the browser?
Yes — both GrünstromIndex and Storm Glass Marine Weather send CORS headers over HTTPS, so front-end code can fetch either directly with no backend proxy. That makes them easy to swap in a client-side app while you compare responses.
Are GrünstromIndex and Storm Glass Marine Weather free for commercial use?
GrünstromIndex 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.