Mirascope is an open-source Python toolkit designed to simplify the integration of large language models (LLMs) into applications. It provides the right level of abstractions, allowing developers to remain in control while leveraging powerful LLM capabilities. Mirascope can be used entirely on its own for building with LLMs or selectively integrated with components from other frameworks, ensuring flexibility and optimal performance. This makes it a versatile tool for developers looking to harness the power of LLMs in their projects without sacrificing control or customization.