duckduckgo-search>=6.0.0
langgraph>=0.2.0
langchain-core>=0.2.0
langchain-ollama>=0.1.0
langchain-anthropic>=0.2.0
langchain-openai>=0.1.0
fastapi>=0.111.0
uvicorn>=0.30.0
httpx>=0.27.0
pytest>=8.0.0
