City, Helsinki vs FEC

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

Uptime · 30d
Uptime · 90d—%—%
Uptime · 30d—%—%
P50 · ms
P95 · ms
AuthnoneapiKey
CORSnoyes
HTTPSyesyes
Card requirednono
Commercial useunclearunclear
Data licenseUnverifiedUnverified
Free tierFree — limits not publishedFree tier — API key required
Rate limitUnpublishedUnpublished
In directory since2026-07-052026-07-05
operationalpartialdownno data

City, Helsinki vs FEC: common questions

Which is more reliable, City, Helsinki or FEC?

On our scheduled checks, FEC leads on measured uptime — City, Helsinki at —% versus FEC at —% over 90 days. These are our own probe results, not provider claims; the uptime bars above show the day-by-day record for both.

Do City, Helsinki and FEC need an API key?

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

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

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

Are City, Helsinki and FEC free for commercial use?

City, Helsinki 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.