Capability · Framework — orchestration

Mirascope

Mirascope from Mirascope AI (formerly Mirascope Inc.) provides a minimal but complete Python interface for LLM apps: prompt templates as decorated functions, typed responses via Pydantic, tools, streaming, async, and a uniform API across OpenAI, Anthropic, Google, Groq, Cohere, Mistral, and local providers. It's intentionally lean — closer to requests for LLMs than to a large framework.

Framework facts

Category
orchestration
Language
Python
License
MIT
Repository
https://github.com/Mirascope/mirascope

Install

pip install "mirascope[anthropic]"

Quickstart

from mirascope.core import anthropic, prompt_template

@anthropic.call('claude-opus-4-7')
@prompt_template('Recommend a {genre} book.')
def recommend_book(genre: str): ...

response = recommend_book('science fiction')
print(response.content)

Alternatives

  • Instructor — structured outputs only
  • Pydantic AI — full agent framework
  • LangChain — larger ecosystem
  • LlamaIndex — RAG-focused alternative

Frequently asked questions

How does Mirascope compare to LangChain?

Mirascope is much smaller and more Pythonic — it's closer to writing regular Python functions with decorators than to composing chains. If LangChain feels too heavy, Mirascope is a popular minimalist alternative.

Does Mirascope support tools and agents?

Yes. It supports tool/function calling, streaming, async, and you can build agent loops with ordinary Python control flow. It leans on Pydantic for structured outputs rather than inventing its own primitives.

Sources

  1. Mirascope — docs — accessed 2026-04-20
  2. Mirascope — GitHub — accessed 2026-04-20