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DFlight API vs IPMA

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

APIDFlight APINEW—IPMANEW—
Uptime · 30d
Uptime · 90d—%—%
Uptime · 30d—%—%
P50 · ms——
P95 · ms——
Authnonenone
CORSyesyes
HTTPSyesyes
Card requirednono
Commercial useunclearunclear
Data licenseUnverifiedIPMA open data (attribution 'Fonte: IPMA' expected)
Free tierFree — limits not publishedFree, no key
Rate limitUnpublishedUnpublished
In directory since2026-07-052026-07-05
operationalpartialdownno data

DFlight API vs IPMA: common questions

Which is more reliable, DFlight API or IPMA?

On our scheduled checks, IPMA leads on measured uptime — DFlight API at —% versus IPMA at —% over 90 days. These are our own probe results, not provider claims; the uptime bars above show the day-by-day record for both.

Do DFlight API and IPMA need an API key?

Neither needs a paid key — DFlight API is callable with no signup, and IPMA is callable with no signup. Both are quick to prototype with; rate limits still apply.

Can I call DFlight API and IPMA from the browser?

Yes — both DFlight API and IPMA 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 DFlight API and IPMA free for commercial use?

DFlight API has unclear commercial terms, and IPMA 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.