.env.example

# Groq API Key (required)
GROQ_API_KEY=your_groq_api_key_here

# Wolfram Alpha App ID (required for Wolfram tool)
WOLFRAM_ALPHA_APP_ID=your_wolfram_alpha_app_id_here

# LangSmith Tracing (optional but recommended)
LANGSMITH_API_KEY=your_langsmith_api_key_here
LANGSMITH_PROJECT=algebra-chatbot
LANGSMITH_TRACING=true