The EU language tools are available at https://language-tools.ec.europa.eu/
One of the available services is the eTranslation tool available through API:
European and national public administrations, or cross-border EU projects supported from the CEF programme can integrate eTranslation in their digital services to guarantee support in all the languages of the European countries participating in the CEF programme.
You would like to enable users of your online service to use it in their own language.
Integrate the machine translation service within the system/service you supply by connecting through the Application Programming Interface (API) provided by web services to automatically request machine translations.
You can translate your online content into the language your users speak.
Officials working in an EU institution or public administration and SMEs in a EU country, Norway and Iceland can directly use the web interface for the translation of documents and snippets of text.