fastapi>=0.115
httpx>=0.27
langchain-anthropic>=0.3
langchain-core>=0.2.38
langgraph>=0.2
langgraph-checkpoint>=2.0
msgpack>=1.0
nest-asyncio>=1.6
pynacl>=1.5
python-dotenv>=1.0
python-multipart>=0.0.9
uvicorn>=0.30