Video SDK from Zoom - Build fully customizable video-based apps
Pingdom - With website monitoring from Pingdom you will be the first to know when your website is down. No installation required. 30-day free trial.
Amazon Chime - Online meetings and video conferencing
StatusCake - Website Uptime Monitoring & Alerts – Free Unlimited Downtime Monitoring
AuthKey.io - SMS API and WhatsApp Business API
Better Uptime - We call you when your website goes down