There is an alternative Google Translate API that is free and is internally used by the Google Translate service in Chromium. More information is in this post (I'm not the author): https://ctrlq.org/code/19909-google-translate-api
Here's an example query, translating English into Norwegian: https://translate.googleapis.com/translate_a/single?client=gtx&sl=en&tl=no&dt=t&q=Hello%20world