# API Keys for Deep Research Agent Example # Copy this file to .env and fill in your actual API keys # OpenAI API Key OPENAI_API_KEY=your_openai_api_key_here # Tavily API Key (for web search) TAVILY_API_KEY=your_tavily_api_key_here # LangSmith API Key # Get your key at: https://smith.langchain.com/settings LANGSMITH_API_KEY=lsv2_pt_your_api_key_here LANGSMITH_TRACING=true LANGSMITH_PROJECT=Deep-Agent-Context-Engineering # LangGraph CLI - which allows synchronous blocking I/O operations BG_JOB_ISOLATED_LOOPS=true