Google just announced that it will be shutting down it’s autocomplete API. The change will take effect on August 10, 2015. Read more about it here at searchengineland.com.
“Google said the unsupported API had no official restrictions and saw the API being used in both ways they found useful and in other ways that were not so useful. That being said, Google said the Autocomplete API doesn’t “provide a meaningful user benefit” other than being paired to Google Web search.”