
Description: The Google+ Hangouts API allows developers to enable real-time communication features in their apps. It supports video calling, screen sharing, and other collaboration tools. The API makes it easy to build messaging, meeting, and conferencing functionality.
Type: Open Source Test Automation Framework
Founded: 2011
Primary Use: Mobile app testing automation
Supported Platforms: iOS, Android, Windows

Description: OpenTok is a WebRTC video conferencing platform that enables developers to easily integrate high-quality video chat into web and mobile apps. It provides reliable video streaming, cross-platform capability, scalability, security features, and a flexible API.
Type: Cloud-based Test Automation Platform
Founded: 2015
Primary Use: Web, mobile, and API testing
Supported Platforms: Web, iOS, Android, API