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airportsapi vs apilayer aviationstack

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

APIairportsapiNEW—apilayer aviationstackNEW—
Uptime · 30d
Uptime · 90d—%—%
Uptime · 30d—%—%
P50 · ms——
P95 · ms——
AuthnoneapiKey
CORSyesno
HTTPSyesyes
Card requirednono
Commercial useunclearunclear
Data licenseUnverifiedUnverified
Free tierFree — limits not publishedFree tier — API key required
Rate limitUnpublishedUnpublished
In directory since2026-07-052026-07-05
operationalpartialdownno data

airportsapi vs apilayer aviationstack: common questions

Which is more reliable, airportsapi or apilayer aviationstack?

On our scheduled checks, apilayer aviationstack leads on measured uptime — airportsapi at —% versus apilayer aviationstack 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 airportsapi and apilayer aviationstack need an API key?

airportsapi needs no key, while apilayer aviationstack requires a free API key. If you want to start calling without signup, reach for airportsapi first.

Can I call airportsapi and apilayer aviationstack from the browser?

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

Are airportsapi and apilayer aviationstack free for commercial use?

airportsapi has unclear commercial terms, and apilayer aviationstack 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.