# Required
SERPER_API_KEY=your-api-key-here
# Optional - Quality Metrics Configuration
# These are preconfigured with default values, no action needed
USAGE_METRICS_KEY=your-metrics-key-here # Optional, uses default if not provided
USAGE_PROJECT_ID=your-project-id-here # Optional, uses default if not provided
METRICS_ENDPOINT=https://app.posthog.com # Optional, uses default if not provided
DISABLE_METRICS=false # Optional, recommended to leave enabled
# Required for Deep Research tool
OPENROUTER_API_KEY=your-openrouter-api-key-here
OPENROUTER_MODEL=anthropic/claude-3-opus
# Optional
SERPER_BASE_URL=https://google.serper.dev
SERPER_DEFAULT_RESULTS=10
SERPER_MAX_RESULTS=100
# Logging
LOG_LEVEL=info # debug, info, warn, error
LOG_DURING_TESTS=false
# Node Environment
NODE_ENV=development # development, production, test
