requirements.txt

# Core Dependencies
fastapi>=0.95.0
uvicorn[standard]>=0.15.0
python-dotenv>=0.19.0
pydantic>=1.9.0,<3.0.0
aiohttp>=3.8.1

# AI and Machine Learning (Lightweight Alternatives)
transformers>=4.36.2
sentence-transformers>=2.2.2  # Lighter alternative for embeddings
scikit-learn>=1.3.2
numpy>=1.26.3
pandas>=2.1.4

# Computer Vision (Optional - Comment out if not needed)
# opencv-python>=4.9.0.80
Pillow>=10.2.0

# Natural Language Processing
spacy>=3.7.2
nltk>=3.8.1

# Database and Storage
sqlalchemy>=2.0.25
aiosqlite>=0.19.0  # Lightweight database for free tier

# Web and API
requests>=2.31.0
httpx>=0.26.0
websockets>=12.0
python-multipart>=0.0.6

# Security
python-jose[cryptography]>=3.3.0
passlib[bcrypt]>=1.7.4
python-multipart>=0.0.6

# Monitoring and Logging
prometheus-client>=0.19.0
loguru>=0.7.2

# Testing
pytest>=7.4.3
pytest-asyncio>=0.23.3

# Development
black>=23.12.1
flake8>=7.0.0