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City, Berlin vs FEC

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

APICity, BerlinHEALTHY88FECREACHABLE99
Uptime · 30d
Uptime · 90d99.02%99.02%
Uptime · 30d98.3%98.3%
P50 · ms8611602
P95 · ms32313334
AuthnoneapiKey
CORSnoyes
HTTPSyesyes
Card requirednono
Commercial useunclearunclear
Data licenseVaries per dataset (many CC-BY / dl-de-by-2.0)Unverified
Free tierFree — limits not publishedFree tier — API key required
Rate limitUnpublishedUnpublished
In directory since2026-07-052026-07-05
operationalpartialdownno data

City, Berlin vs FEC: common questions

Which is more reliable, City, Berlin or FEC?

Both are neck-and-neck — City, Berlin and FEC each measure 99.02% 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, Berlin or FEC?

City, Berlin has the lower median latency in our checks — City, Berlin responds in 861 ms versus FEC at 1602 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, Berlin and FEC need an API key?

City, Berlin needs no key, while FEC requires a free API key. If you want to start calling without signup, reach for City, Berlin first.

Can I call City, Berlin and FEC from the browser?

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

Are City, Berlin and FEC free for commercial use?

City, Berlin has unclear commercial terms, and FEC 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.