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apilayer aviationstack vs Transport for Switzerland

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

APIapilayer aviationstackHEALTHY92Transport for SwitzerlandHEALTHY62
Uptime · 30d
Uptime · 90d98.0%96.1%
Uptime · 30d96.7%95.0%
P50 · ms535916
P95 · ms11474887
AuthapiKeynone
CORSnoyes
HTTPSyesyes
Card requirednono
Commercial useunclearunclear
Data licenseUnverifiedUnverified (powered by Opendata.ch)
Free tierFree tier — API key requiredFree — no key required
Rate limitUnpublishedBounded by timetable.search.ch limits (no fixed number published)
In directory since2026-07-052026-07-05
operationalpartialdownno data

apilayer aviationstack vs Transport for Switzerland: common questions

Which is more reliable, apilayer aviationstack or Transport for Switzerland?

On our scheduled checks, apilayer aviationstack leads on measured uptime — apilayer aviationstack at 98.0% versus Transport for Switzerland at 96.1% 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, apilayer aviationstack or Transport for Switzerland?

apilayer aviationstack has the lower median latency in our checks — apilayer aviationstack responds in 535 ms versus Transport for Switzerland at 916 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 apilayer aviationstack and Transport for Switzerland need an API key?

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

Can I call apilayer aviationstack and Transport for Switzerland from the browser?

Only Transport for Switzerland 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 apilayer aviationstack and Transport for Switzerland free for commercial use?

apilayer aviationstack has unclear commercial terms, and Transport for Switzerland 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.