I am using the Google Translation API, here is an example request to getting 'Hello' from English to Simplified Chinese:
Google Translation API - 'Hello' From English to Chinese
And as you can see this is pretty much all the data it returns:
你好
Which is not very helpful to a user who might want to be able to speak it, so does Google Translation API return any pinyin or phonetic typing so it might return that as:
Ni Hao
Thanks!
This isn't possible with the current API. See:
Get Chinese Romanization from Google Translate API
Apparently it is still an open issue that Google has not implemented into the API.