airportsapi vs Road511

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

Uptime · 30d
Uptime · 90d88.2%27.5%
Uptime · 30d85.0%0.0%
P50 · ms8211128
P95 · ms49692458
AuthnoneapiKey
CORSyesyes
HTTPSyesyes
Card requirednono
Commercial useunclearunclear
Data licenseUnverifiedUnverified
Free tierFree — limits not publishedFree tier — API key required
Rate limitUnpublished70 req/window · 69 remaining · resets 1783522019
In directory since2026-07-052026-07-05
operationalpartialdownno data

airportsapi vs Road511: common questions

Which is more reliable, airportsapi or Road511?

On our scheduled checks, airportsapi leads on measured uptime — airportsapi at 88.2% versus Road511 at 27.5% 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, airportsapi or Road511?

airportsapi has the lower median latency in our checks — airportsapi responds in 821 ms versus Road511 at 1128 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 airportsapi and Road511 need an API key?

airportsapi needs no key, while Road511 requires a free API key. If you want to start calling without signup, reach for airportsapi first.

Can I call airportsapi and Road511 from the browser?

Yes — both airportsapi and Road511 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 airportsapi and Road511 free for commercial use?

airportsapi has unclear commercial terms, and Road511 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.