has turned its Smart Reply technology into an API that third-party Android and iOS developers can easily deploy in their own messaging apps. The software looks at the (up to) ten most recent messages in a thread, applies Google's machine learning algorithm locally (nothing is sent to the cloud,) and suggests three complete replies that can be sent with one tap. The software also uses machine learning to identify sensitive topics, so it can avoid making inappropriate suggestions in response to cases of personal tragedy/hardship or profanity. The feature is part of ML Kit, a suite of APIs that all use machine learning. Google also just added Language Identification to ML Kit. The new Smart Reply API is available first in English, and uses Language Identification to only suggest replies in the appropriate language. The first third-party app to make use of the Smart Reply API is textPlus.