Matomo Languages Manager API
The LanguagesManager API lets you access existing Matomo translations, and change Users languages preferences. "getTranslationsForLanguage" will return all translation strings for a given language, so you can leverage Matomo translations in your application (and automatically benefit from the 40+ translations!). This is mostly useful to developers who integrate Matomo API results in their own application. You can also request the default language to load for a user via "getLanguageForUser", or update it via "setLanguageForUser".