DOCOMO is a Japanese provider that offers a suite of API tools meant to streamline application development. The Phonebook API can be used to export contact information to the DOCOMO Phonebook cloud storage center. The interface can also be used to send notifications, post messages to timelines, add images, and obtain the user ID of friends who have shared their contact information with a user. The Phonebook API can be implemented via REST protocol. DOCOMO also offers an API console to easily demo their many APIs.