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Transport for Philadelphia, US vs Transport for United States

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

APITransport for Philadelphia, USHEALTHY86Transport for United StatesHEALTHY84
Uptime · 30d
Uptime · 90d100%100%
Uptime · 30d100%100%
P50 · ms7141093
P95 · ms45851963
Authnonenone
CORSnoyes
HTTPSyesyes
Card requirednono
Commercial useunclearunclear
Data licenseUnverifiedData copyright transit agencies / Umo IQ
Free tierFree — limits not publishedFree — limits not published
Rate limitUnpublishedUnpublished
In directory since2026-07-052026-07-05
operationalpartialdownno data

Transport for Philadelphia, US vs Transport for United States: common questions

Which is more reliable, Transport for Philadelphia, US or Transport for United States?

Both are neck-and-neck — Transport for Philadelphia, US and Transport for United States each measure 100% uptime over 90 days on our probe schedule. Reliability here is verified from our own scheduled checks; use the 30-day bars above to see which has been steadier lately.

Which is faster, Transport for Philadelphia, US or Transport for United States?

Transport for Philadelphia, US has the lower median latency in our checks — Transport for Philadelphia, US responds in 714 ms versus Transport for United States at 1093 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 Transport for Philadelphia, US and Transport for United States need an API key?

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

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

Only Transport for United States 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 Transport for Philadelphia, US and Transport for United States free for commercial use?

Transport for Philadelphia, US has unclear commercial terms, and Transport for United States 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.