The Facebook Messenger Platform User Profile API allows developers to use a PSID to retrieve profile information. This information can be used to personalize the experiences of people interacting with a third-party messenger app. This API is part of the Facebook Messenger Platform, which allows developers to use custom bots and live messaging tools to engage their audience.
Facebook has announced the launch of beta access to a new Messenger API feature which will provide support for Instagram messaging capabilities. Facebook is hoping to provide businesses with the tools necessary to improve customer satisfaction and facilitate meaningful conversations on Instagram.