City, New York Open Data vs ONS
Same instrument, two spec sheets — measured, not claimed.
City, New York Open Data vs ONS: common questions
Which is more reliable, City, New York Open Data or ONS?
On our scheduled checks, ONS leads on measured uptime — City, New York Open Data at 98.0% versus ONS 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, City, New York Open Data or ONS?
ONS has the lower median latency in our checks — City, New York Open Data responds in 1399 ms versus ONS at 732 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 City, New York Open Data and ONS need an API key?
Neither needs a paid key — City, New York Open Data is callable with no signup, and ONS is callable with no signup. Both are quick to prototype with; rate limits still apply.
Can I call City, New York Open Data and ONS from the browser?
Yes — both City, New York Open Data and ONS 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 ONS free for commercial use?
City, New York Open Data has unclear commercial terms, and ONS 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.