404. That’s an error.

The requested URL /translate_c?depth=1&hl=fr&ie=UTF8&langpair=en%7Cfr&pto=aue&rurl=translate.google.com&sp=nmt4&u=https://openlibrary.org/developers/api&usg=ALkJrhgREyFPoGyewLSbp3Q8R3xjE5rXRg was not found on this server. That’s all we know.