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LibreTranslate vs OnSched Consumer API

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

APILibreTranslateHEALTHY92OnSched Consumer APIHEALTHY88
Uptime · 30d
Uptime · 90d100%100%
Uptime · 30d100%100%
P50 · ms619666
P95 · ms14741890
AuthnoneapiKey
CORSyesyes
HTTPSyesyes
Card requirednono
Commercial useunclearunclear
Data licenseUnverified (software is AGPL-3.0)Unverified
Free tierFree — /languages is keyless; hosted /translate may require a key or donationFree tier — API key required
Rate limitUnpublished (per hosted instance)Unpublished
In directory since2026-07-052026-07-05
operationalpartialdownno data

LibreTranslate vs OnSched Consumer API: common questions

Which is more reliable, LibreTranslate or OnSched Consumer API?

Both are neck-and-neck — LibreTranslate and OnSched Consumer 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, LibreTranslate or OnSched Consumer API?

LibreTranslate has the lower median latency in our checks — LibreTranslate responds in 619 ms versus OnSched Consumer API at 666 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 LibreTranslate and OnSched Consumer API need an API key?

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

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

Yes — both LibreTranslate and OnSched Consumer API send CORS headers over HTTPS, so front-end code can fetch either directly with no backend proxy. That makes them easy to swap in a client-side app while you compare responses.

Are LibreTranslate and OnSched Consumer API free for commercial use?

LibreTranslate 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.