City, Nantes Open Data vs CPFHub

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

Uptime · 30d
Uptime · 90d—%—%
Uptime · 30d—%—%
P50 · ms
P95 · ms
AuthapiKeyapiKey
CORSyesyes
HTTPSyesyes
Card requirednono
Commercial useunclearunclear
Data licenseUnverifiedUnverified
Free tierFree tier — key may be requiredFree tier — API key required
Rate limitUnpublishedUnpublished
In directory since2026-07-052026-07-05
operationalpartialdownno data

City, Nantes Open Data vs CPFHub: common questions

Which is more reliable, City, Nantes Open Data or CPFHub?

On our scheduled checks, CPFHub leads on measured uptime — City, Nantes Open Data at —% versus CPFHub 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 City, Nantes Open Data and CPFHub need an API key?

Both ask you to authenticate — City, Nantes Open Data uses an API key and CPFHub uses an API key. Each key is free to obtain; the Auth and Card-required rows above spell out the signup terms.

Can I call City, Nantes Open Data and CPFHub from the browser?

Yes — both City, Nantes Open Data and CPFHub 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 City, Nantes Open Data and CPFHub free for commercial use?

City, Nantes Open Data has unclear commercial terms, and CPFHub 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.