• Limit results to one or more countries. Permitted values are ISO 3166 alpha 2 country codes (e.g. US, DE, GB)

  • List of language codes which used to provide localized results, order matters.

    Locale.preferredLanguages used as default or ["en"] if none. Specify the user’s language. This parameter controls the language of the text supplied in responses, and also affects result scoring, with results matching the user’s query in the requested language being preferred over results that match in another language. For example, a query for things that start with Frank might return Frankfurt as the first result with an English (en) language parameter, but Frankreich (“France”) with a German (de) language parameter.