Exa RAG Integration Quick Reference | Topic | When to Use | Reference | |-------|-------------|-----------| | LangChain | Building RAG chains with LangChain | langchain.md | | LlamaIndex | Using Exa as a LlamaIndex data source | llamaindex.md | | Vercel AI SDK | Adding web search to Next.js AI apps | vercel-ai.md | | MCP & Tools | Claude MCP server, OpenAI tools, function calling | mcp-tools.md | Essential Patterns LangChain Retriever LlamaIndex Reader Vercel AI SDK Tool OpenAI-Compatible Endpoint Integration Selection | Framework | Best For | Key Feature | |-----------|----------|-----------…