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Road511 vs Transport for Paris, France

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

APIRoad511DEAD0Transport for Paris, FranceHEALTHY67
Uptime · 30d
Uptime · 90d27.5%100%
Uptime · 30d0.0%100%
P50 · ms1128931
P95 · ms24582253
AuthapiKeynone
CORSyesyes
HTTPSyesyes
Card requirednono
Commercial useunclearunclear
Data licenseUnverifiedUnverified
Free tierFree tier — API key requiredFree — limits not published
Rate limit70 req/window · 69 remaining · resets 1783522019OpenDataSoft platform defaults (unpublished here)
In directory since2026-07-052026-07-05
operationalpartialdownno data

Road511 vs Transport for Paris, France: common questions

Which is more reliable, Road511 or Transport for Paris, France?

On our scheduled checks, Transport for Paris, France leads on measured uptime — Road511 at 27.5% versus Transport for Paris, France 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, Road511 or Transport for Paris, France?

Transport for Paris, France has the lower median latency in our checks — Road511 responds in 1128 ms versus Transport for Paris, France at 931 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 Road511 and Transport for Paris, France need an API key?

Transport for Paris, France needs no key, while Road511 requires a free API key. If you want to start calling without signup, reach for Transport for Paris, France first.

Can I call Road511 and Transport for Paris, France from the browser?

Yes — both Road511 and Transport for Paris, France 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 Road511 and Transport for Paris, France free for commercial use?

Road511 has unclear commercial terms, and Transport for Paris, France 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.