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Climate FieldView Platform APIs vs Hong Kong Observatory

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

APIClimate FieldView Platform APIsNEW—Hong Kong ObservatoryNEW—
Uptime · 30d
Uptime · 90d—%—%
Uptime · 30d—%—%
P50 · ms——
P95 · ms——
AuthapiKeynone
CORSnoyes
HTTPSyesyes
Card requirednono
Commercial useunclearunclear
Data licenseUnverifiedHKO open data (see terms of use)
Free tierFree tier — API key requiredFree, no key
Rate limitUnpublishedUnpublished
In directory since2026-07-052026-07-05
operationalpartialdownno data

Climate FieldView Platform APIs vs Hong Kong Observatory: common questions

Which is more reliable, Climate FieldView Platform APIs or Hong Kong Observatory?

On our scheduled checks, Hong Kong Observatory leads on measured uptime — Climate FieldView Platform APIs at —% versus Hong Kong Observatory 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 Climate FieldView Platform APIs and Hong Kong Observatory need an API key?

Hong Kong Observatory needs no key, while Climate FieldView Platform APIs requires a free API key. If you want to start calling without signup, reach for Hong Kong Observatory first.

Can I call Climate FieldView Platform APIs and Hong Kong Observatory from the browser?

Only Hong Kong Observatory is browser-friendly — it returns CORS headers over HTTPS. Climate FieldView Platform APIs needs a server-side call or proxy, so factor that into which one fits a front-end project.

Are Climate FieldView Platform APIs and Hong Kong Observatory free for commercial use?

Climate FieldView Platform APIs has unclear commercial terms, and Hong Kong Observatory 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.