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Bureau of Labor Statistics Public Data API vs Energy-Charts API

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

APIBureau of Labor Statistics Public Data APIHEALTHY91Energy-Charts APIHEALTHY81
Uptime · 30d
Uptime · 90d96.1%99.02%
Uptime · 30d93.3%98.3%
P50 · ms5161178
P95 · ms13542855
Authnonenone
CORSnoyes
HTTPSyesyes
Card requirednono
Commercial useunclearunclear
Data licenseUnverifiedUnverified
Free tierFree — limits not publishedFree — limits not published
Rate limitUnpublishedUnpublished
In directory since2026-07-052026-07-05
operationalpartialdownno data

Bureau of Labor Statistics Public Data API vs Energy-Charts API: common questions

Which is more reliable, Bureau of Labor Statistics Public Data API or Energy-Charts API?

On our scheduled checks, Energy-Charts API leads on measured uptime — Bureau of Labor Statistics Public Data API at 96.1% versus Energy-Charts API at 99.02% 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, Bureau of Labor Statistics Public Data API or Energy-Charts API?

Bureau of Labor Statistics Public Data API has the lower median latency in our checks — Bureau of Labor Statistics Public Data API responds in 516 ms versus Energy-Charts API at 1178 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 Bureau of Labor Statistics Public Data API and Energy-Charts API need an API key?

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

Can I call Bureau of Labor Statistics Public Data API and Energy-Charts API from the browser?

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

Are Bureau of Labor Statistics Public Data API and Energy-Charts API free for commercial use?

Bureau of Labor Statistics Public Data API has unclear commercial terms, and Energy-Charts API 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.