# API Keys for AI Providers (at least one required)
ANTHROPIC_API_KEY=your_anthropic_key_here
OPENAI_API_KEY=your_openai_key_here
GEMINI_API_KEY=your_gemini_key_here
DEEPSEEK_API_KEY=your_deepseek_key_here

# AWS S3 Configuration (optional - for loading indices from S3)
AWS_ACCESS_KEY_ID=your_aws_access_key
AWS_SECRET_ACCESS_KEY=your_aws_secret_key

# Note: On Hugging Face Spaces, set these in the Settings > Variables and secrets section