# LLM Providers (choose one or both)
GROQ_API_KEY=gsk_your_groq_key
OPENROUTER_API_KEY=sk-or-your_openrouter_key

# SearXNG (self-hosted, optional)
SEARXNG_URL=https://your-searxng.hf.space

# Search APIs
TAVILY_API_KEY=tvly-xxxxx
BRAVE_API_KEY=BSAxxxxx

# Configuration
LLM_PROVIDER=openrouter  # or "groq"
LLM_MODEL=nvidia/nemotron-3-super-120b-a12b:free