City, Nantes Open Data vs OpenRegistry
Same instrument, two spec sheets — measured, not claimed.
City, Nantes Open Data vs OpenRegistry: common questions
Which is more reliable, City, Nantes Open Data or OpenRegistry?
On our scheduled checks, City, Nantes Open Data leads on measured uptime — City, Nantes Open Data at 100% versus OpenRegistry at 80.0% 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, Nantes Open Data or OpenRegistry?
OpenRegistry has the lower median latency in our checks — City, Nantes Open Data responds in 383 ms versus OpenRegistry at 241 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, Nantes Open Data and OpenRegistry need an API key?
Both ask you to authenticate — City, Nantes Open Data uses an API key and OpenRegistry 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 OpenRegistry from the browser?
Only City, Nantes Open Data is browser-friendly — it returns CORS headers over HTTPS. OpenRegistry needs a server-side call or proxy, so factor that into which one fits a front-end project.
Are City, Nantes Open Data and OpenRegistry free for commercial use?
City, Nantes Open Data has unclear commercial terms, and OpenRegistry 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.