SignalTrigger is an API for sending messages to instant messaging services from computer code. This can be useful for notifying the recipient when a connection is lost, when a script completes, when an API call fails, etc. Currently, the API supports communication with Skype, Whatsapp, Twitter, Hangouts, Yo, E-mail, SMS, XMPP/Jabber, Pushbullet, and VK.
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