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Clockify API vs ListLoco API

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

APIClockify APINEW—ListLoco APINEW—
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 limitUnpublishedUnpublished
In directory since2026-07-052026-07-05
operationalpartialdownno data

Clockify API vs ListLoco API: common questions

Which is more reliable, Clockify API or ListLoco API?

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

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

Can I call Clockify API and ListLoco API from the browser?

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

Are Clockify API and ListLoco API free for commercial use?

Clockify API has unclear commercial terms, and ListLoco API 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.