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apilayer aviationstack vs Transport for Belgium

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

APIapilayer aviationstackHEALTHY92Transport for BelgiumHEALTHY90
Uptime · 30d
Uptime · 90d98.0%94.1%
Uptime · 30d96.7%90.0%
P50 · ms535567
P95 · ms11471576
AuthapiKeynone
CORSnoyes
HTTPSyesyes
Card requirednono
Commercial useunclearunclear
Data licenseUnverifiedUnverified
Free tierFree tier — API key requiredFree — no key
Rate limitUnpublishedUnpublished
In directory since2026-07-052026-07-05
operationalpartialdownno data

apilayer aviationstack vs Transport for Belgium: common questions

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

On our scheduled checks, apilayer aviationstack leads on measured uptime — apilayer aviationstack at 98.0% versus Transport for Belgium at 94.1% 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 Belgium?

apilayer aviationstack has the lower median latency in our checks — apilayer aviationstack responds in 535 ms versus Transport for Belgium at 567 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 Belgium need an API key?

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

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

Only Transport for Belgium 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 Belgium free for commercial use?

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