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How to Build a WhatsApp RAG AI Agent with n8n (Free Template)

Automating WhatsApp replies with AI can save hours of manual work for businesses. In this tutorial, we’ll build a WhatsApp RAG (Retrieval Augmented Generation) AI Agent using n8n and WhatsApp Business Cloud API.

This agent will:

  • ✅ Read incoming WhatsApp messages
  • ✅ Use RAG (Retrieval Augmented Generation) for smarter, context-based replies
  • ✅ Connect to your own knowledge base (Google Sheets, product data, FAQs, etc.)
  • ✅ Send automated responses directly on WhatsApp Business Cloud API
  • ✅ Save you hours by automating customer support & business communication

Best of all, you can download the workflow JSON file to get started instantly.

🚀 Prerequisites

Before starting, make sure you have:

📂 Download Free Workflow JSON

• Download Workflow JSON File: Download

Import this into your n8n dashboard to follow along.

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