mirascope
The LLM Anti-Framework
Stars: 1412
Mirascope is an LLM toolkit for lightning-fast, high-quality development. Building with Mirascope feels like writing the Python code you’re already used to writing.
README:
Welcome to Mirascope, which allows you to use any frontier LLM with one unified interface.
Install Mirascope:
uv add "mirascope[all]"from mirascope import llm
@llm.call("anthropic/claude-sonnet-4-5")
def recommend_book(genre: str):
return f"Recommend a {genre} book."
response = recommend_book("fantasy")
print(response.text())from pydantic import BaseModel
from mirascope import llm
class Book(BaseModel):
title: str
author: str
@llm.call("anthropic/claude-sonnet-4-5", format=Book)
def recommend_book(genre: str):
return f"Recommend a {genre} book."
book = recommend_book("fantasy").parse()
print(f"{book.title} by {book.author}")from pydantic import BaseModel
from mirascope import llm
class Book(BaseModel):
title: str
author: str
@llm.tool
def get_available_books(genre: str) -> list[Book]:
"""Get available books in the library by genre."""
return [Book(title="The Name of the Wind", author="Patrick Rothfuss")]
@llm.call("anthropic/claude-sonnet-4-5", tools=[get_available_books], format=Book)
def librarian(request: str):
return f"You are a librarian. Help the user: {request}"
response = librarian("I want a fantasy book")
while response.tool_calls:
response = response.resume(response.execute_tools())
book = response.parse()
print(f"Recommending: {book.title} by {book.author}")For streaming, async, multi-turn conversations, and more, see the full documentation.
This project is structured as a monorepo, that conceptually divides into four parts:
-
python/contains the Python implementation, and examples (inpython/examples) -
typescript/contains the Typescript implementation, and examples (intypescript/examples) -
cloud/contains the full-stack cloud application (React frontend + Cloudflare Workers backend) -
docs/contains the unified cross-language documentation (indocs/content), as well as configuration needed to build the docs
For detailed information about the codebase structure, architecture, and design decisions, see STRUCTURE.md.
Use bun run cloud:dev to launch the dev server.
Note that Bun must be installed.
We currently have four CI jobs:
- codespell: Checks for common misspellings including python, typescript, and docs repos
- python-lint: Linting and typechecking for Python code
- typescript-lint: Linting and typechecking for Typescript code
- cloudflare docs build: Builds and previews the documentation site
You can run bun run ci in the root directory to run all CI checks locally. If adding new checks to GitHub CI, please also add it to the ci script in root package.json as well.
Mirascope uses Semantic Versioning.
This repository uses a multi-license structure:
- Default: All code is licensed under the MIT License unless otherwise specified.
-
Cloud Directory: The
cloud/directory is licensed under a proprietary license. Seecloud/LICENSEfor details.
Subdirectories may contain their own LICENSE files that take precedence for files within those directories.
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