.env.example

# LLM API Configuration for Prompt Engineering Features
# Required: Set your API key
# OPENAI_API_KEY=your_api_key_here

# Optional: Custom API endpoint (leave empty for OpenAI default)
# LLM_API_URL=https://api.deepseek.com/v1/chat/completions

# Optional: Model name (default: gpt-3.5-turbo)
# LLM_MODEL=deepseek-chat

# Example configurations:

# DeepSeek (Recommended - cost-effective)
# OPENAI_API_KEY=sk-your-deepseek-key
# LLM_API_URL=https://api.deepseek.com/v1/chat/completions
# LLM_MODEL=deepseek-chat

# OpenAI (Default)
# OPENAI_API_KEY=sk-your-openai-key

# Azure OpenAI
# OPENAI_API_KEY=your-azure-key
# LLM_API_URL=https://your-resource.openai.azure.com/openai/deployments/your-deployment/chat/completions?api-version=2023-12-01-preview
# LLM_MODEL=gpt-35-turbo

# Security Note: 
# This API key is used for the prompt engineering playground and practice modes only.
# The application implements rate limiting (10 requests/minute, 50/hour per IP) and request validation to minimize abuse.