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Transport for Paris, France vs Transport for United States

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

APITransport for Paris, FranceHEALTHY67Transport for United StatesHEALTHY84
Uptime · 30d
Uptime · 90d100%100%
Uptime · 30d100%100%
P50 · ms9311093
P95 · ms22531963
Authnonenone
CORSyesyes
HTTPSyesyes
Card requirednono
Commercial useunclearunclear
Data licenseUnverifiedData copyright transit agencies / Umo IQ
Free tierFree — limits not publishedFree — limits not published
Rate limitOpenDataSoft platform defaults (unpublished here)Unpublished
In directory since2026-07-052026-07-05
operationalpartialdownno data

Transport for Paris, France vs Transport for United States: common questions

Which is more reliable, Transport for Paris, France or Transport for United States?

Both are neck-and-neck — Transport for Paris, France 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 Paris, France or Transport for United States?

Transport for Paris, France has the lower median latency in our checks — Transport for Paris, France responds in 931 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 Paris, France and Transport for United States need an API key?

Neither needs a paid key — Transport for Paris, France 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 Paris, France and Transport for United States from the browser?

Yes — both Transport for Paris, France and Transport for United States send CORS headers over HTTPS, so front-end code can fetch either directly with no backend proxy. That makes them easy to swap in a client-side app while you compare responses.

Are Transport for Paris, France and Transport for United States free for commercial use?

Transport for Paris, France 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.