City, Gdynia vs City, Nantes Open Data

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

Uptime · 30d
Uptime · 90d100%100%
Uptime · 30d100%100%
P50 · ms12301073
P95 · ms39332966
AuthnoneapiKey
CORSnoyes
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?

Both are neck-and-neck — City, Gdynia and City, Nantes Open Data each measure 100% uptime over 90 days on our probe schedule. Reliability here is verified from our own scheduled checks; use the 30-day bars above to see which has been steadier lately.

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 1230 ms versus City, Nantes Open Data at 1073 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?

Only City, Nantes Open Data is browser-friendly — it returns CORS headers over HTTPS. City, Gdynia needs a server-side call or proxy, so factor that into which one fits a front-end project.

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.