.env.example

# Copy to .env and fill in. .env is gitignored.

# Weights & Biases
WANDB_ENTITY=your-wandb-username-or-team
WANDB_MODE=online          # or "offline" for no-network runs

# Anthropic (explanation generation)
ANTHROPIC_API_KEY=sk-ant-...

# App
APEX_BACKEND_URL=http://localhost:8000

# API service (Phase 9). All optional — sensible defaults if unset.
APEX_API_KEYS=              # comma-separated; empty => auth disabled (open, dev only)
APEX_API_KEY_HEADER=X-API-Key
APEX_RATE_LIMIT=60          # requests per window, per client (API key or IP)
APEX_RATE_WINDOW_S=60
APEX_DEVICE=cpu             # cpu | mps | cuda — detector device for the service
APEX_BACKEND=template       # explanation backend: template | claude | local
APEX_WARMUP=1              # 1 => load the model at startup so the first request is warm