Energy-Charts API vs HasData: Structured Web Data APIs

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

Uptime · 30d
Uptime · 90d99.02%100%
Uptime · 30d98.3%100%
P50 · ms1178768
P95 · ms28551464
AuthnoneapiKey
CORSyesyes
HTTPSyesyes
Card requirednono
Commercial useunclearunclear
Data licenseUnverifiedUnverified
Free tierFree — limits not publishedFree tier — API key required
Rate limitUnpublishedUnpublished
In directory since2026-07-052026-07-05
operationalpartialdownno data

Energy-Charts API vs HasData: Structured Web Data APIs: common questions

Which is more reliable, Energy-Charts API or HasData: Structured Web Data APIs?

On our scheduled checks, HasData: Structured Web Data APIs leads on measured uptime — Energy-Charts API at 99.02% versus HasData: Structured Web Data APIs 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 HasData: Structured Web Data APIs?

HasData: Structured Web Data APIs has the lower median latency in our checks — Energy-Charts API responds in 1178 ms versus HasData: Structured Web Data APIs at 768 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 HasData: Structured Web Data APIs need an API key?

Energy-Charts API needs no key, while HasData: Structured Web Data APIs requires a free API key. If you want to start calling without signup, reach for Energy-Charts API first.

Can I call Energy-Charts API and HasData: Structured Web Data APIs from the browser?

Yes — both Energy-Charts API and HasData: Structured Web Data APIs 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 HasData: Structured Web Data APIs free for commercial use?

Energy-Charts API has unclear commercial terms, and HasData: Structured Web Data APIs 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.