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DFlight API vs IPMA

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

APIDFlight APIDEAD0IPMAHEALTHY64
Uptime · 30d
Uptime · 90d11.8%98.0%
Uptime · 30d0.0%96.7%
P50 · ms3191024
P95 · ms6682034
Authnonenone
CORSnoyes
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 11.8% versus IPMA at 98.0% 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, DFlight API or IPMA?

DFlight API has the lower median latency in our checks — DFlight API responds in 319 ms versus IPMA at 1024 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 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?

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

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.