DOCOMO's Text to Speech API accepts inputted text in English, Katakana or Hiragana, and translates this into a natural sounding spoken voice. The API can be integrated into a Java application using the DOCOMO Text to Speech Java SDK.
Message Bus is a cloud-native application service for email and mobile messaging. The selling point is the high deliverability rate, its ability to scale according to demand and the fact that it's simple enough to be used by developers with limited time and resources. The Message Bus API makes it possible for developers to easily add messaging functionality to their websites and apps.