ClassroomIO simplifies running training programs across your entire company. It lets you create branded academies with your own domain, embed courses anywhere, and use an AI tutor in every lesson. The AI authoring tool turns your existing knowledge into structured courses with quizzes, and you can approve each step. It supports multiple academies for different audiences, offers a REST API, webhooks, and an MCP server for developers, and is open-source with a modern stack.