Mage AI is a self-hosted, open-source data pipeline development environment designed to help teams build, run, and manage production-grade AI/ML pipelines. It offers a notebook-style interface powered by modular Python code for automating ETL tasks, orchestrating data transformations, and integrating with tools like dbt, Spark, and SQL engines. With over 8,600 GitHub stars, it is widely adopted for streamlining data engineering workflows in AI-driven applications.