The Language In Use SDK
Language In Use isn't just a closed product — the backend is designed to be used by other apps and websites. The SDK gives developers a clean way to query the dictionary, pull articles, and reuse the same data that powers our own apps.
What you can do with it
- Look up words, definitions, translations, synonyms and antonyms across six languages.
- Fetch verb conjugations with full tense tables.
- Read published articles and the words attached to them — handy for language-learning integrations.
- Send back usage signals to improve the dictionary for everyone.
Who it's for
Anyone building a language-learning tool, a dictionary plugin, a reader extension, or a classroom integration. If your product touches vocabulary or verb practice and you'd rather not build your own corpus from scratch, the SDK saves months.
What we ask in return
Access is free for non-commercial and educational use. For commercial products we ask for a light partnership — attribution, a small revenue share for sizable integrations, and a feedback loop so the data keeps improving. Nothing scary: we want you to build things, not bill you into silence.
Interested?
Drop us a note about what you want to build and we'll set you up.