Open source
AutoGen
Microsoft's open source framework for building multi-agent AI apps
Agent FrameworksMicrosoft multi-agent toolkit
Best tools for Python developers
27 tools in our directory are marked as best for Python developers, from 11 sections: AI Agents & Assistants (8), Frameworks (4), Dev Utilities (3), Testing & QA (3) and 7 more sections.
Tools
Open source
CAMEL-AI
Open source community and framework for multi-agent systems
Agent FrameworksMulti-agent society framework
Open source
Coverage.py
Measures which Python code runs during your tests
Quality and ReportingCode coverage for Python
Open source
Django
High-level Python framework for building database-driven web apps
PythonBatteries-included Python
Open source
dlt
Open source Python library for building data loading pipelines
Data PipelinesPython library for pipelines
Open source
DSPy
Framework for programming LLM pipelines with typed signatures
Agent FrameworksProgram LLMs, not prompt them
Open source
FastAPI
Python framework for building APIs with type hints and automatic docs
PythonFast Python API framework
Open source
FastMCP
Python framework for building MCP servers and clients
MCP ToolingFast way to build MCP servers
Open source
Flask
Lightweight Python WSGI framework for web apps and APIs
Backend FrameworksLightweight Python framework
Open source
Gel
Open source database layer on Postgres with a typed schema
SQL DatabasesGraph relational on Postgres
Open source
Hypothesis
Property-based testing library for Python that finds edge cases
Test FrameworksProperty tests for Python
Open source
Instructor
Library for getting structured, validated data from LLM output
Agent FrameworksStructured outputs from LLMs
Open source
Open source
LangGraph
Low-level framework for stateful, long-running agents as graphs
Agent FrameworksStateful graph based agents
Open source
marimo
Open source reactive Python notebook stored as plain Python files
Notebooks and SheetsReactive Python notebooks
Open source
MkDocs
Static site generator for project docs written in Markdown
Docs GeneratorsMarkdown docs generatorInactive
Open source
OpenAI Agents SDK
Lightweight Python SDK for agents, handoffs and guardrails
Agent FrameworksOpenAI lightweight agent SDK
Freemium
Curated
Pydantic AI
Type-safe Python agent framework with many model providers
Agent FrameworksType safe Python agents
Free
PyPI
Official package index for finding and installing Python packages
Package ManagersPython package index
Open source
Free
Python Documentation
Official reference, tutorial and guides for the Python language
Docs TutorialsOfficial Python docs
Freemium
Popular
Sphinx
Builds documentation sites from reStructuredText or Markdown files
Code DocsPython docs generator
Open source
SQLAlchemy
Python SQL toolkit and ORM with full SQL power and flexibility
ORMs and ValidationPython SQL toolkit and ORM
Open source
uv
Fast Python package and project manager written in Rust
Package ManagersFast Python package manager
Open source
Wagtail
Open source Django CMS for flexible, editor-friendly sites
Traditional CMSDjango CMS for developers
Looking for something else? Browse the full directory.