Clara - Clara is a virtual employee that schedules your meetings, getting you to the work that matters, faster.
Alexa Skill Kit - Effortless Alexa Skill development with AWS Lambda
x.ai - x.ai is a tool to schedule meetings for you and your team.
BotTalk - Create Alexa skills and Google Assistant actions with Markup
Mia - Virtual assistant for meetings
OK Google - Explore over 150 Google Now voice commands in one place