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OPUS
Large open collection of parallel texts in many languages, with a public API for searching and downloading corpora. Widely used to train translation models.
| Category | Translation APIs |
|---|---|
| Authentication | No auth |
| Pricing | Free |
| Website | https://opus.nlpl.eu/ |
| Docs | https://opus.nlpl.eu/opusapi/ |
| Last checked | 2026-10-14 |
| As JSON | /api/v1/directory/opus.json |
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