The Flask API tutorial is a project that provides a comprehensive guide on creating a Flask API with JWT-based authentication. The tutorial aims to provide a robust and secure REST API that can be used in real-world production applications. The tutorial emphasizes the importance of automated test coverage and explains how to configure pytest plugins for code style enforcement, linting, and test coverage calculation. The tutorial also covers deploying the application as part of a CI/CD system using GitHub Actions and Azure Pipelines.