City, Gdynia vs City, Nantes Open Data

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

Uptime · 30d
Uptime · 90d99.44%100%
Uptime · 30d100%100%
P50 · ms624383
P95 · ms39332966
AuthnoneapiKey
CORSyesyes
HTTPSyesyes
Card requirednono
Commercial useunclearunclear
Data licenseUnverifiedUnverified
Free tierFree / open dataFree tier — key may be required
Rate limitUnpublishedUnpublished
In directory since2026-07-052026-07-05
operationalpartialdownno data

City, Gdynia vs City, Nantes Open Data: common questions

Which is more reliable, City, Gdynia or City, Nantes Open Data?

On our scheduled checks, City, Nantes Open Data leads on measured uptime — City, Gdynia at 99.44% versus City, Nantes Open Data 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, Gdynia or City, Nantes Open Data?

City, Nantes Open Data has the lower median latency in our checks — City, Gdynia responds in 624 ms versus City, Nantes Open Data at 383 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, Gdynia and City, Nantes Open Data need an API key?

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

Can I call City, Gdynia and City, Nantes Open Data from the browser?

Yes — both City, Gdynia and City, Nantes Open Data 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, Gdynia and City, Nantes Open Data free for commercial use?

City, Gdynia has unclear commercial terms, and City, Nantes Open Data 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.