Aare.guru API vs Danish data service Energi

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

Uptime · 30d
Uptime · 90d100%100%
Uptime · 30d100%100%
P50 · ms1025888
P95 · ms29932789
Authnonenone
CORSyesno
HTTPSyesyes
Card requirednono
Commercial useunclearunclear
Data licenseUnverifiedUnverified
Free tierFree — limits not publishedFree — no API key
Rate limitUnpublishedUnpublished
In directory since2026-07-052026-07-05
operationalpartialdownno data

Aare.guru API vs Danish data service Energi: common questions

Which is more reliable, Aare.guru API or Danish data service Energi?

Both are neck-and-neck — Aare.guru API and Danish data service Energi each measure 100% uptime over 90 days on our probe schedule. Reliability here is verified from our own scheduled checks; use the 30-day bars above to see which has been steadier lately.

Which is faster, Aare.guru API or Danish data service Energi?

Danish data service Energi has the lower median latency in our checks — Aare.guru API responds in 1025 ms versus Danish data service Energi at 888 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 Aare.guru API and Danish data service Energi need an API key?

Neither needs a paid key — Aare.guru API is callable with no signup, and Danish data service Energi is callable with no signup. Both are quick to prototype with; rate limits still apply.

Can I call Aare.guru API and Danish data service Energi from the browser?

Only Aare.guru API is browser-friendly — it returns CORS headers over HTTPS. Danish data service Energi needs a server-side call or proxy, so factor that into which one fits a front-end project.

Are Aare.guru API and Danish data service Energi free for commercial use?

Aare.guru API has unclear commercial terms, and Danish data service Energi 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.