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7Timer! vs openSenseMap

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

API7Timer!HEALTHY91openSenseMapHEALTHY84
Uptime · 30d
Uptime · 90d100%90.2%
Uptime · 30d100%90.0%
P50 · ms600655
P95 · ms29354139
Authnonenone
CORSnoyes
HTTPSnoyes
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

7Timer! vs openSenseMap: common questions

Which is more reliable, 7Timer! or openSenseMap?

On our scheduled checks, 7Timer! leads on measured uptime — 7Timer! at 100% versus openSenseMap at 90.2% 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, 7Timer! or openSenseMap?

7Timer! has the lower median latency in our checks — 7Timer! responds in 600 ms versus openSenseMap at 655 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 7Timer! and openSenseMap need an API key?

Neither needs a paid key — 7Timer! 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 7Timer! and openSenseMap from the browser?

Only openSenseMap is browser-friendly — it returns CORS headers over HTTPS. 7Timer! needs a server-side call or proxy, so factor that into which one fits a front-end project.

Are 7Timer! and openSenseMap free for commercial use?

7Timer! 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.