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OnSched Consumer API vs RSQ API

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

APIOnSched Consumer APIHEALTHY88RSQ APIHEALTHY91
Uptime · 30d
Uptime · 90d100%100%
Uptime · 30d100%100%
P50 · ms722783
P95 · ms18901387
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 RSQ API: common questions

Which is more reliable, OnSched Consumer API or RSQ API?

Both are neck-and-neck — OnSched Consumer API and RSQ API each measure 100% uptime over 90 days on our probe schedule. Reliability here is verified from our own scheduled checks; use the 30-day bars above to see which has been steadier lately.

Which is faster, OnSched Consumer API or RSQ API?

OnSched Consumer API has the lower median latency in our checks — OnSched Consumer API responds in 722 ms versus RSQ API at 783 ms (P50). Tail latency (P95) is in the table above; for most workloads the median is the number that shapes how the API feels.

Do OnSched Consumer API and RSQ API need an API key?

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

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

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

Are OnSched Consumer API and RSQ API free for commercial use?

OnSched Consumer API has unclear commercial terms, and RSQ 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.