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Clockify API vs OOPSpam

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

APIClockify APINEW—OOPSpamNEW—
Uptime · 30d
Uptime · 90d—%—%
Uptime · 30d—%—%
P50 · ms——
P95 · ms——
AuthapiKeynone
CORSyesno
HTTPSyesyes
Card requirednono
Commercial useunclearunclear
Data licenseUnverifiedUnverified
Free tierFree tier — API key requiredFree — limits not published
Rate limitUnpublished1000 req/window · 999 remaining
In directory since2026-07-052026-07-05
operationalpartialdownno data

Clockify API vs OOPSpam: common questions

Which is more reliable, Clockify API or OOPSpam?

On our scheduled checks, OOPSpam leads on measured uptime — Clockify API at —% versus OOPSpam 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 Clockify API and OOPSpam need an API key?

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

Can I call Clockify API and OOPSpam from the browser?

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

Are Clockify API and OOPSpam free for commercial use?

Clockify API has unclear commercial terms, and OOPSpam 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.