Call Loop, web-based voice and SMS solution provider, offers the Call Loop API that allows developers to add Call Loop’s calling and SMS features to third party apps. Often referred to as the “Constant Contact” for voice and text, Call Loop focuses on broadcast communications. Businesses or individuals can reach subscriber bases via voice or text messages.
SoundHound's Hound app allows users to ask complex questions and get an accurate answer really fast. The app combines voice recognition and language understanding functionality to achieve this. The Houndify API allows developers to integrate it in to their own apps and hardware creations.