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7Timer! vs GrünstromIndex

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

API7Timer!HEALTHY91GrünstromIndexHEALTHY53
Uptime · 30d
Uptime · 90d100%73.5%
Uptime · 30d100%73.3%
P50 · ms6001072
P95 · ms29354119
Authnonenone
CORSnoyes
HTTPSnoyes
Card requirednono
Commercial useunclearunclear
Data licenseUnverifiedUnverified
Free tierFree — limits not publishedFree under fair-use policy
Rate limitUnpublishedFair-use (paid tiers for higher limits)
In directory since2026-07-052026-07-05
operationalpartialdownno data

7Timer! vs GrünstromIndex: common questions

Which is more reliable, 7Timer! or GrünstromIndex?

On our scheduled checks, 7Timer! leads on measured uptime — 7Timer! at 100% versus GrünstromIndex at 73.5% 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 GrünstromIndex?

7Timer! has the lower median latency in our checks — 7Timer! responds in 600 ms versus GrünstromIndex at 1072 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 GrünstromIndex need an API key?

Neither needs a paid key — 7Timer! is callable with no signup, and GrünstromIndex is callable with no signup. Both are quick to prototype with; rate limits still apply.

Can I call 7Timer! and GrünstromIndex from the browser?

Only GrünstromIndex 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 GrünstromIndex free for commercial use?

7Timer! has unclear commercial terms, and GrünstromIndex 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.