Facebook launched the Messenger Platform v2.1 for developers, which has a range of features,
including built-in NLP, handover protocol, analytics, customer matching, discovers bots, chatbot API, chat
extensions, and account linking. The built-in NLP functionality automatically detects the intent of the user
from text messages. In addition, Facebook also provides platform design kits for bot development, sends
and receives APIs, messenger ads, graph templates for bots, and provides a discover tab for bot search
and chat extensions for user interactions. Furthermore, Facebook has introduced Bot Engine, a
conversational AI tool, which is powered by the machine learning technique. The Bot Engine predicts the
next action of the users from their conversation history. In order to make bots more interactive, developers
can feed conversational dialogues in the form of stories into the Bot Engine.