FastAPI is a modern, fast web framework for building APIs with Python 3.7+ based on standard Python type hints. It provides automatic API documentation, data validation, and serialization.
The Launchpad uses FastAPI because of its tight integration with Pydantic for automatic data validation, built-in OpenAPI documentation generation, and excellent performance for asynchronous operations. Its dependency injection system makes it perfect for managing database sessions, authentication, and other shared resources.