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City, Nantes Open Data vs Data.parliament.uk

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

APICity, Nantes Open DataNEW—Data.parliament.ukNEW—
Uptime · 30d
Uptime · 90d—%—%
Uptime · 30d—%—%
P50 · ms——
P95 · ms——
AuthapiKeynone
CORSyesyes
HTTPSyesyes
Card requirednono
Commercial useunclearyes
Data licenseUnverifiedOpen Parliament Licence
Free tierFree tier — key may be requiredFree / open data
Rate limitUnpublishedUnpublished
In directory since2026-07-052026-07-05
operationalpartialdownno data

City, Nantes Open Data vs Data.parliament.uk: common questions

Which is more reliable, City, Nantes Open Data or Data.parliament.uk?

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

Data.parliament.uk needs no key, while City, Nantes Open Data requires a free API key. If you want to start calling without signup, reach for Data.parliament.uk first.

Can I call City, Nantes Open Data and Data.parliament.uk from the browser?

Yes — both City, Nantes Open Data and Data.parliament.uk 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 Data.parliament.uk free for commercial use?

City, Nantes Open Data has unclear commercial terms, and Data.parliament.uk allows commercial use on its free tier. 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.