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Transport for London, England vs Transport for United States

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

APITransport for London, EnglandHEALTHY77Transport for United StatesHEALTHY84
Uptime · 30d
Uptime · 90d68.6%100%
Uptime · 30d46.7%100%
P50 · ms3161093
P95 · ms7321963
AuthapiKeynone
CORSyesyes
HTTPSyesyes
Card requirednono
Commercial useunclearunclear
Data licenseUnverifiedData copyright transit agencies / Umo IQ
Free tierFree tier — API key may be required for productionFree — limits not published
Rate limitUnpublishedUnpublished
In directory since2026-07-052026-07-05
operationalpartialdownno data

Transport for London, England vs Transport for United States: common questions

Which is more reliable, Transport for London, England or Transport for United States?

On our scheduled checks, Transport for United States leads on measured uptime — Transport for London, England at 68.6% versus Transport for United States 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, Transport for London, England or Transport for United States?

Transport for London, England has the lower median latency in our checks — Transport for London, England responds in 316 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 London, England and Transport for United States need an API key?

Transport for United States needs no key, while Transport for London, England requires a free API key. If you want to start calling without signup, reach for Transport for United States first.

Can I call Transport for London, England and Transport for United States from the browser?

Yes — both Transport for London, England 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 London, England and Transport for United States free for commercial use?

Transport for London, England 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.