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Open-Meteo Archive vs openSenseMap

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

APIOpen-Meteo ArchiveNEW—openSenseMapNEW—
Uptime · 30d
Uptime · 90d—%—%
Uptime · 30d—%—%
P50 · ms——
P95 · ms——
Authnonenone
CORSyesyes
HTTPSyesyes
Card requirednono
Commercial useunclearunclear
Data licenseUnverifiedOpen data (license set per senseBox; often public domain)
Free tierFree — limits not publishedFree (open-source citizen-science platform)
Rate limitUnpublishedUnpublished
In directory since2026-07-052026-07-05
operationalpartialdownno data

Open-Meteo Archive vs openSenseMap: common questions

Which is more reliable, Open-Meteo Archive or openSenseMap?

On our scheduled checks, openSenseMap leads on measured uptime — Open-Meteo Archive at —% versus openSenseMap 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 Open-Meteo Archive and openSenseMap need an API key?

Neither needs a paid key — Open-Meteo Archive is callable with no signup, and openSenseMap is callable with no signup. Both are quick to prototype with; rate limits still apply.

Can I call Open-Meteo Archive and openSenseMap from the browser?

Yes — both Open-Meteo Archive and openSenseMap 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 Open-Meteo Archive and openSenseMap free for commercial use?

Open-Meteo Archive has unclear commercial terms, and openSenseMap 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.