n8n Tutorial for Beginners: Build AI Agents Without Code
Most people jump straight into n8n's AI builder and end up with workflows they can't read or fix. This tutorial starts from zero — triggers, nodes, webhooks, and error handling — then connects OpenAI to build real automations: an email summarizer, a WhatsApp/Telegram organizer, a LinkedIn post generator, and an AI agent that makes decisions, all without writing code.
⏱️ Chapters:
0:00 Course Introduction & What is Automation
0:26 What is an AI Agent?
0:46 What You'll Build in This Course
1:07 Project: Set Up Your n8n Account
1:55 The AI Workflow Builder
3:22 Tour of the n8n Interface
3:39 Workflow Fundamentals: Triggers, Nodes, Data Flow, and AI Agents
4:47 Reading a Pre-Built Workflow
5:34 Project: Analyze 3 More Workflows
6:05 What is a Webhook Trigger?
6:36 Creating Your First Webhook
6:58 Adding Email Notifications
7:53 Basic Error Handling
8:42 Final Project: Build a Complete Automation
10:01 Module 3 Wrap-Up
11:13 Setting Up the OpenAI Node in n8n
16:07 Writing a Prompt That Actually Works
22:38 Getting Structured Output from AI (JSON Mode)
26:51 Passing AI Output into the Next Node
32:02 Email Summarizer Automation (Build Along)
37:26 WhatsApp/Telegram Message Organizer
44:30 LinkedIn Post Generator from Topic Input
48:00 What is Conditional Logic?
51:35 Letting AI Make a Decision in Your Workflow
54:46 Routing to Different Actions Based on AI Output
58:24 What Makes a Workflow an Agent vs an Automation?
1:01:56 The Most Common Workflow Failures (and Why They Happen)
1:07:41 Adding Error Handling Nodes
1:12:48 Validating Inputs Before the AI Sees Them
1:16:39 Setting Up a Fallback Action
1:19:40 How the n8n AI Builder Works (Prompt → Workflow)
1:24:10 Generating Your First AI-Built Workflow
1:28:03 Reading and Verifying What It Built (Critical Step)
1:31:15 Fixing and Improving AI-Generated Workflows
ℹ️ This course is independent and is not affiliated with, endorsed by, or sponsored by n8n, OpenAI, Google, Meta, Telegram, or LinkedIn. For educational purposes only.
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