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OnSched Consumer API vs ScreenURL

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

APIOnSched Consumer APINEW—ScreenURLNEW—
Uptime · 30d
Uptime · 90d—%—%
Uptime · 30d—%—%
P50 · ms——
P95 · ms——
AuthapiKeyapiKey
CORSyesno
HTTPSyesyes
Card requirednono
Commercial useunclearunclear
Data licenseUnverifiedUnverified
Free tierFree tier — API key requiredFree tier — API key required
Rate limitUnpublishedUnpublished
In directory since2026-07-052026-07-05
operationalpartialdownno data

OnSched Consumer API vs ScreenURL: common questions

Which is more reliable, OnSched Consumer API or ScreenURL?

On our scheduled checks, ScreenURL leads on measured uptime — OnSched Consumer API at —% versus ScreenURL 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 OnSched Consumer API and ScreenURL need an API key?

Both ask you to authenticate — OnSched Consumer API uses an API key and ScreenURL uses an API key. Each key is free to obtain; the Auth and Card-required rows above spell out the signup terms.

Can I call OnSched Consumer API and ScreenURL from the browser?

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

Are OnSched Consumer API and ScreenURL free for commercial use?

OnSched Consumer API has unclear commercial terms, and ScreenURL 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.