Build a FREE RAG AI Agent with n8n & MongoDB | 2026

Karam Hawash | AI Automation January 6, 2026
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GET THE FREE TEMPLATE ⬇️ 🔗https://www.skool.com/ai-automation-flow-9979/about?ref=7f4540fab86e4ef3b1c3b034166bebcc Book a free Consultation: 🔗 https://cal.com/genovaflow-ai/discovery-call  Let us build your project: 🔗 https://genovaflow.com/home/contact  14‑day FREE Trial on n8n: 🔗 https://n8n.partnerlinks.io/ox7johicleqv Sponsorship: 📧 [email protected] Got questions about the video? Drop them in the comments below ⬇️ In this video, I will show you the easiest way to make a RAG AI agent using n8n for free. This automation allows you to chat with an AI agent that generates responses based on files you feed into a knowledge base integrated with MongoDB. We will build a system that can process PDFs and CSVs from Google Drive, embed the data using Gemini, and store it for retrieval. 💡What you'll learn  ✅ How to build a custom AI agent in n8n that answers questions using your own knowledge base. ✅ Learn how to set up MongoDB Atlas as a free vector database to store chat memory and document embeddings. ✅ Discover how to configure Vector Search in MongoDB to perform semantic searches on your data. ✅ How to build an automated pipeline that downloads files from Google Drive and inserts them into your database automatically. ✅ How to verify and test your RAG agent with real-world files like inventory spreadsheets and financial PDFs. ✅ How to get MongoDB Credentials for n8n ✅ How to set up vector search in MongoDB This tutorial guides you through the entire process of creating a Retrieval-Augmented Generation (RAG) system without writing code. You will learn how to use the "Vector Store" tool to let the AI retrieve information and how to handle different file formats by parsing text and turning it into numbers (embeddings). By the end, you'll be able to ask your AI complex questions about your specific business data and get accurate answers. ⏱️ Timestamps:  ⏳ 00:00 Intro & RAG Workflow Overview ⏳ 01:25 Configuring MongoDB Credentials & Chat Memory ⏳ 04:39 Setting up the AI Agent & Vector Store Tool ⏳ 06:35 Creating the Vector Search Index in MongoDB ⏳ 08:26 Building the Google Drive Data Loader Pipeline Don’t forget to like this video, subscribe for more AI automation tutorials, and hit the notification bell so you don't miss future content. #n8n #rag #aiagent #mongodb #automation #vectorsearch #nocode #aiautomation #n8ntutorial #n8nautomation

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