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OnSched Consumer API vs What The Commit

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

APIOnSched Consumer APINEW—What The CommitNEW—
Uptime · 30d
Uptime · 90d—%—%
Uptime · 30d—%—%
P50 · ms——
P95 · ms——
AuthapiKeynone
CORSyesyes
HTTPSyesno
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

OnSched Consumer API vs What The Commit: common questions

Which is more reliable, OnSched Consumer API or What The Commit?

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

What The Commit needs no key, while OnSched Consumer API requires a free API key. If you want to start calling without signup, reach for What The Commit first.

Can I call OnSched Consumer API and What The Commit from the browser?

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

Are OnSched Consumer API and What The Commit free for commercial use?

OnSched Consumer API has unclear commercial terms, and What The Commit 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.