Zapier - Connect the apps you use everyday to automate your work and be more productive. 1000+ apps and easy integrations - get started in minutes.
Dialogflow - Conversational UX Platform. (ex API.ai)
ifttt - IFTTT puts the internet to work for you. Create simple connections between the products you use every day.
Botpress - Open-source platform for developers to build high-quality digital assistants
n8n.io - Free and open fair-code licensed node based Workflow Automation Tool. Easily automate tasks across different services.
Meya.ai - Build, train and host sophisticated bots.