City, Nantes Open Data vs REG-Vault
Same instrument, two spec sheets — measured, not claimed.
City, Nantes Open Data vs REG-Vault: common questions
Which is more reliable, City, Nantes Open Data or REG-Vault?
On our scheduled checks, City, Nantes Open Data leads on measured uptime — City, Nantes Open Data at 100% versus REG-Vault at 93.1% 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 REG-Vault?
REG-Vault has the lower median latency in our checks — City, Nantes Open Data responds in 1073 ms versus REG-Vault at 260 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 REG-Vault need an API key?
REG-Vault needs no key, while City, Nantes Open Data requires a free API key. If you want to start calling without signup, reach for REG-Vault first.
Can I call City, Nantes Open Data and REG-Vault from the browser?
Yes — both City, Nantes Open Data and REG-Vault 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 REG-Vault free for commercial use?
City, Nantes Open Data has unclear commercial terms, and REG-Vault 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.