Api.ai (formerly Speaktoit) is a developer of human–computer interaction technologies based on natural language conversations. The company is best known for creating the Assistant (by Speaktoit), a virtual buddy for Android, iOS, and Windows Phone smartphones that performs tasks and answers users’ question in a natural language.[1] Speaktoit has also created a natural language processing engine that incorporates conversation context like dialogue history, location and user preferences.

In May 2012, Speaktoit received a venture round (funding terms undisclosed) from Intel Capital.[2] In July 2014, Speaktoit closed their Series B funding led by Motorola Solutions Venture Capital with participation from new investor Plug and Play Ventures and existing backers Intel Capital and Alpine Technology Fund.[3]

In September 2014, Speaktoit released api.ai (the voice-enabling engine that powers Assistant) to third-party developers, allowing the addition of voice interfaces to apps based on Android, iOS, HTML5, and Cordova.[4][5] The SDK’s contain voice recognition, natural language understanding, and text-to-speech. api.ai offers a web interface to build and test conversation scenarios. The platform is based on the natural language processing engine built by Speaktoit for its Assistant application.[4] Api.ai allows Internet of Things developers to include natural language voice interfaces in their products.[6] Assistant and Speaktoit’s websites now redirect to api.ai’s website.

Google bought the company in September 2016[7] and it is now known as API.AI; it provides tools to developers building apps (“Actions”) for the Google Assistant virtual assistant.[8]

The organization discontinued the Assistant app on December 15, 2016.

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