Mirascope

Mirascope is a Python library for structured LLM calls and tool-using agents with strong typing. It competes in the Instructor/Pydantic-AI band for reliable, schema-first LM I/O. Use to harden extractors and tool calls in Python workers. Prefer one typed stack per install to avoid three competing schema layers. The LLM Anti-Framework Welcome to Mirascope, which allows you to use any frontier LLM with one unified interface. @llm.call("anthropic/claude-sonnet-4-5") def recommendbook(genre: str): return f"Recommend a {genre} book." python from pydantic import BaseModel from mirascope import llm @llm.call("anthropic/claude-sonnet-4-5", format=Book) def recommendbook(genre: str): return f"Recommend a {genre} book." book = recommendbook("fantasy").parse() print(f"{book.title} by {book.author}") @llm.tool def getavailablebooks(genre: str) - list[Book]: """Get available.