airportsapi vs Transport for Philadelphia, US

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

Uptime · 30d
Uptime · 90d—%—%
Uptime · 30d—%—%
P50 · ms
P95 · ms
Authnonenone
CORSyesno
HTTPSyesyes
Card requirednono
Commercial useunclearunclear
Data licenseUnverifiedUnverified
Free tierFree — limits not publishedFree — limits not published
Rate limitUnpublishedUnpublished
In directory since2026-07-052026-07-05
operationalpartialdownno data

airportsapi vs Transport for Philadelphia, US: common questions

Which is more reliable, airportsapi or Transport for Philadelphia, US?

On our scheduled checks, Transport for Philadelphia, US leads on measured uptime — airportsapi at —% versus Transport for Philadelphia, US 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 Transport for Philadelphia, US need an API key?

Neither needs a paid key — airportsapi is callable with no signup, and Transport for Philadelphia, US is callable with no signup. Both are quick to prototype with; rate limits still apply.

Can I call airportsapi and Transport for Philadelphia, US from the browser?

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

Are airportsapi and Transport for Philadelphia, US free for commercial use?

airportsapi has unclear commercial terms, and Transport for Philadelphia, US 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.