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apilayer aviationstack vs Transport for Paris, France

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

APIapilayer aviationstackHEALTHY92Transport for Paris, FranceHEALTHY67
Uptime · 30d
Uptime · 90d98.0%100%
Uptime · 30d96.7%100%
P50 · ms535931
P95 · ms11472253
AuthapiKeynone
CORSnoyes
HTTPSyesyes
Card requirednono
Commercial useunclearunclear
Data licenseUnverifiedUnverified
Free tierFree tier — API key requiredFree — limits not published
Rate limitUnpublishedOpenDataSoft platform defaults (unpublished here)
In directory since2026-07-052026-07-05
operationalpartialdownno data

apilayer aviationstack vs Transport for Paris, France: common questions

Which is more reliable, apilayer aviationstack or Transport for Paris, France?

On our scheduled checks, Transport for Paris, France leads on measured uptime — apilayer aviationstack at 98.0% versus Transport for Paris, France at 100% 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 Paris, France?

apilayer aviationstack has the lower median latency in our checks — apilayer aviationstack responds in 535 ms versus Transport for Paris, France at 931 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 Paris, France need an API key?

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

Can I call apilayer aviationstack and Transport for Paris, France from the browser?

Only Transport for Paris, France 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 Paris, France free for commercial use?

apilayer aviationstack has unclear commercial terms, and Transport for Paris, France 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.