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Energy-Charts API vs Wikipedia REST

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

APIEnergy-Charts APIUNMONITORED—Wikipedia RESTHEALTHY—
Uptime · 30d
Uptime · 90d—%—%
Uptime · 30d—%—%
P50 · ms——
P95 · ms——
Authnonenone
CORSyesyes
HTTPSyesyes
Card requirednono
Commercial useunclearyes
Data licenseUnverifiedCC BY-SA 4.0
Free tierFree — limits not publishedUnlimited within etiquette
Rate limitUnpublished200/sec global courtesy cap
In directory since2026-07-052026-05-09
operationalpartialdownno data

Energy-Charts API vs Wikipedia REST: common questions

Which is more reliable, Energy-Charts API or Wikipedia REST?

Only Wikipedia REST is on our probe schedule so far (—% uptime over 90 days). The other is catalogued but not yet live-checked, so we can't compare measured reliability head-to-head — check the uncovered API's own status page for now.

Do Energy-Charts API and Wikipedia REST need an API key?

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

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

Yes — both Energy-Charts API and Wikipedia REST 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 Wikipedia REST free for commercial use?

Energy-Charts API has unclear commercial terms, and Wikipedia REST allows commercial use on its free tier. 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.