Google ends free tier for Cloud Translation API v2/v3
>> Current pricing for the Translation API v3 includes a free tier (no charges) for the first 500k characters of Text Translations (SKU E205-31DB-F1F4) each month. Effective November 1, 2019, we’re replacing the free tier with a $10 usage credit (equivalent to 500k characters of Text Translations), which will be applied to your billing account each month.
The usage credit:
Will be applied once per billing account per month. Will be applied to both existing and new customers of the Translation API v2 and Translation API v3. Can be used across both the Translation API v2 and Translation API v3. Applies to the covered SKUs listed below, so any combination of usage will be charged against this credit up to a maximum of $10, after which any usage above this limit will be charged per normal pricing. Will not roll over if unused, but will be reset each month. Will not appear in the SKU description for Translate.