| # 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 | |