Ring4 Meeting - Dead simple video conferencing - free, in browser
Voiceflow - Build voice apps in your browser without coding
Fellow.app - A manager’s co-pilot for 1:1s, meetings, feedback & goals 🚀
Alexa Skill Kit - Effortless Alexa Skill development with AWS Lambda
openmeet - Account free video conferencing with a rooms component that lets you use VC within a physical meeting room. The server can also be hosted in your own cloud for extra privacy/security.
API to bot - Convert your API to Alexa skill or Google Home app in 5 mins