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Energy-Charts API vs Statistics of the World

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

APIEnergy-Charts APIHEALTHY81Statistics of the WorldHEALTHY88
Uptime · 30d
Uptime · 90d99.02%100%
Uptime · 30d98.3%100%
P50 · ms1178743
P95 · ms28551573
Authnonenone
CORSyesyes
HTTPSyesyes
Card requirednono
Commercial useunclearunclear
Data licenseUnverifiedUnverified (data sourced from World Bank & IMF)
Free tierFree — limits not publishedFree — no key (optional X-API-Key header)
Rate limitUnpublished1000 req/window · 999 remaining · resets 2026-07-09T11:30:37.514Z
In directory since2026-07-052026-07-05
operationalpartialdownno data

Energy-Charts API vs Statistics of the World: common questions

Which is more reliable, Energy-Charts API or Statistics of the World?

On our scheduled checks, Statistics of the World leads on measured uptime — Energy-Charts API at 99.02% versus Statistics of the World at 100% 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 Statistics of the World?

Statistics of the World has the lower median latency in our checks — Energy-Charts API responds in 1178 ms versus Statistics of the World at 743 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 Statistics of the World need an API key?

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

Can I call Energy-Charts API and Statistics of the World from the browser?

Yes — both Energy-Charts API and Statistics of the World 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 Energy-Charts API and Statistics of the World free for commercial use?

Energy-Charts API has unclear commercial terms, and Statistics of the World 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.