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Abstract Email Validation vs LibreTranslate

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

APIAbstract Email ValidationREACHABLE—LibreTranslateNEW—
Uptime · 30d
Uptime · 90d—%—%
Uptime · 30d—%—%
P50 · ms——
P95 · ms——
AuthapiKeynone
CORSyesyes
HTTPSyesyes
Card requirednono
Commercial useunclearunclear
Data licenseUnverifiedUnverified (software is AGPL-3.0)
Free tierFree — 100 requests/monthFree — /languages is keyless; hosted /translate may require a key or donation
Rate limit100 requests/month on free planUnpublished (per hosted instance)
In directory since2026-07-052026-07-05
operationalpartialdownno data

Abstract Email Validation vs LibreTranslate: common questions

Which is more reliable, Abstract Email Validation or LibreTranslate?

On our scheduled checks, LibreTranslate leads on measured uptime — Abstract Email Validation at —% versus LibreTranslate 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 Abstract Email Validation and LibreTranslate need an API key?

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

Can I call Abstract Email Validation and LibreTranslate from the browser?

Yes — both Abstract Email Validation and LibreTranslate 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 Abstract Email Validation and LibreTranslate free for commercial use?

Abstract Email Validation has unclear commercial terms, and LibreTranslate 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.