shipapis
StarSubmit an APISubmit API

Energy-Charts API vs Warnely

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

APIEnergy-Charts APIHEALTHY81WarnelyDYING89
Uptime · 30d
Uptime · 90d99.02%90.2%
Uptime · 30d98.3%83.3%
P50 · ms1178334
P95 · ms28551375
Authnonenone
CORSyesno
HTTPSyesyes
Card requirednono
Commercial useunclearunclear
Data licenseUnverifiedUnverified
Free tierFree — limits not publishedFree — limits not published
Rate limitUnpublished100 req/window · 99 remaining · resets 60
In directory since2026-07-052026-07-05
operationalpartialdownno data

Energy-Charts API vs Warnely: common questions

Which is more reliable, Energy-Charts API or Warnely?

On our scheduled checks, Energy-Charts API leads on measured uptime — Energy-Charts API at 99.02% versus Warnely 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, Energy-Charts API or Warnely?

Warnely has the lower median latency in our checks — Energy-Charts API responds in 1178 ms versus Warnely at 334 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 Energy-Charts API and Warnely need an API key?

Neither needs a paid key — Energy-Charts API is callable with no signup, and Warnely is callable with no signup. Both are quick to prototype with; rate limits still apply.

Can I call Energy-Charts API and Warnely from the browser?

Only Energy-Charts API is browser-friendly — it returns CORS headers over HTTPS. Warnely needs a server-side call or proxy, so factor that into which one fits a front-end project.

Are Energy-Charts API and Warnely free for commercial use?

Energy-Charts API has unclear commercial terms, and Warnely 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.