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City, New York Open Data vs Data.parliament.uk

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

APICity, New York Open DataNEW—Data.parliament.ukNEW—
Uptime · 30d
Uptime · 90d—%—%
Uptime · 30d—%—%
P50 · ms——
P95 · ms——
Authnonenone
CORSyesyes
HTTPSyesyes
Card requirednono
Commercial useunclearyes
Data licenseUnverifiedOpen Parliament Licence
Free tierFree — limits not publishedFree / open data
Rate limitUnpublishedUnpublished
In directory since2026-07-052026-07-05
operationalpartialdownno data

City, New York Open Data vs Data.parliament.uk: common questions

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

On our scheduled checks, Data.parliament.uk leads on measured uptime — City, New York 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, New York Open Data and Data.parliament.uk need an API key?

Neither needs a paid key — City, New York Open Data is callable with no signup, and Data.parliament.uk is callable with no signup. Both are quick to prototype with; rate limits still apply.

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

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

City, New York 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.