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languagelayer vs OnSched Consumer API

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

APIlanguagelayerNEW—OnSched Consumer APINEW—
Uptime · 30d
Uptime · 90d—%—%
Uptime · 30d—%—%
P50 · ms——
P95 · ms——
AuthnoneapiKey
CORSnoyes
HTTPSyesyes
Card requirednono
Commercial useunclearunclear
Data licenseUnverifiedUnverified
Free tierFree — limits not publishedFree tier — API key required
Rate limitUnpublishedUnpublished
In directory since2026-07-052026-07-05
operationalpartialdownno data

languagelayer vs OnSched Consumer API: common questions

Which is more reliable, languagelayer or OnSched Consumer API?

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

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

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

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

Are languagelayer and OnSched Consumer API free for commercial use?

languagelayer has unclear commercial terms, and OnSched Consumer 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.