requirements.txt

# Web framework
fastapi==0.115.0
uvicorn[standard]==0.30.6
python-multipart==0.0.12

# Data validation / settings
pydantic==2.9.2
pydantic-settings==2.5.2

# LangChain / LangGraph
langchain==0.3.7
langchain-core==0.3.21
langchain-openai==0.2.9
langgraph==0.2.45
# openai SDK is pulled transitively by langchain-openai — no need to pin here.

# Storage
sqlalchemy==2.0.35
aiosqlite==0.20.0
# For Turso/libSQL production: uncomment and install build tools
# sqlalchemy-libsql==0.1.0
# libsql==0.1.0

# Utilities
httpx==0.27.2
tenacity==9.0.0
orjson==3.10.7
python-dotenv==1.0.1

# Rate limiting
slowapi==0.1.9

# Observability
langfuse==2.53.3

# ---- dev / test only (install with: pip install -r requirements-dev.txt) ----
# pytest==8.3.3
# pytest-asyncio==0.24.0
# pytest-cov==5.0.0
# ruff==0.6.9
# mypy==1.13.0