AiAdvisorsFirst AI agent: a free online coursePolski

Free online coursein English, at your own pace, about 2 hours

How to build an AI agent: your first no-code agent in n8n, described in plain words

This AI agent course starts with you telling an AI assistant what should happen in your business. The assistant builds a working n8n automation and tests it itself. No code. You get a ready practice environment, narrated lessons and exercises with prompts to copy.

Watch the narrated lessonSee the program

  • 23kn8n-mcp stars on GitHub
  • 173kinstalls
  • 2.2Mworkflows built by assistants

Registration opens in a few days

I am finishing testing the practice environment. Until then you can watch the whole narrated lesson, no registration needed.

Want a message when registration opens? Write to romuald@aiadvisors.pl.

Watch the narrated lesson

What you will build

1

Inbox triage

A workflow reads ten customer messages, gives each a category and a priority, and saves the result in a table. Invoices go to accounting through a plain rule, with no AI involved.

2

Alerts for urgent cases

The three cases that can't wait reach you right away. You learn where AI is needed in a process and where it only adds cost.

3

An agent with a knowledge base

An AI agent checks the price list and complaint rules in a knowledge base, then writes a draft reply. All you do is approve it.

How it works

  1. You register and click the link in the email. Within 1 to 2 minutes I prepare your n8n account and access to the AI models.
  2. You connect your assistant (Claude, ChatGPT or Codex) to n8n. The guide goes step by step, separately for each of them.
  3. You test the connection with one prompt. If the assistant runs the starter workflow, everything works.
  4. You listen to the lesson. At the exercises the presentation pauses, you copy the prompt and watch the assistant build.
  5. At the end you move the workflows to your own n8n.

What you need

  • A computer. It is not comfortable to work on a phone.
  • An account with Claude, ChatGPT or Codex, preferably on a paid plan. A free ChatGPT account has no skills and no stronger models, and the assistant makes more mistakes.
  • About 15 minutes to connect and 2 hours for the lessons with exercises.

Course program

  1. 01

    AI chat vs. AI inside an automated process

    Why talking to ChatGPT is not automation, and what changes when the model becomes one step of a process.

  2. 02

    Workflows and n8n in fifteen minutes

    A trigger, steps, and data flowing between them. As much theory as you need to understand what the assistant will build.

  3. 03

    Connect your assistant to n8n

    Claude, ChatGPT or Codex gets access to your n8n account through n8n-mcp. You test the connection with one prompt.

  4. 04

    Get to know n8n

    The canvas, nodes, running a workflow and the Executions tab. A short glossary of the terms you see in the interface.

  5. 05

    Six questions that replace a spec

    What starts the process, where the data comes from, what the AI does, where the result goes, what happens on an error, and how you know it works.

  6. 06

    Your first automation: inbox triage

    The assistant builds a workflow that reads ten messages, gives each a category and a priority, and flags the urgent ones right away.

  7. 07

    From automation to AI agent

    A stronger model, a knowledge base and tools. The agent checks what it doesn't know on its own and writes a draft reply to the customer.

  8. 08

    Your own process

    You take a task you do by hand every week and run it through the same six questions.

  9. 09

    Moving to your own n8n

    Export the workflow, pick n8n Cloud or your own server, and repoint the assistant. You finish with an automation that stays with you, and a short survey about the course.

Practice environment and safety

Ready for 14 days

An n8n account, access to two AI models and an n8n-mcp.com account on the free plan (100 tool calls per day). You install nothing. After 14 days the account and workflows delete themselves.

The assistant sees only n8n

The connector gives the assistant access only to your account in the practice environment. It does not see your conversations, files or email. You can disconnect it in the assistant's settings.

No company data

You work on a prepared training inbox. You connect real data only on your own n8n, and the last lesson shows how to move there.

Who teaches this

I'm Romuald Członkowski of AiAdvisors. I created n8n-mcp, the open connector through which AI assistants build workflows in n8n. I advise companies on rolling out automations and AI agents in small steps: internal processes first, then what the customer sees. This course grew out of a workshop I ran at AI Summit Poland in October 2026.

Have a process you want to automate in your company? Tell me about it at aiadvisors.pl.

Frequently asked questions

What is an AI agent?

An AI agent is a language model that has been given a goal, tools, and the freedom to decide in what order to use them. A regular automation always runs its steps in the same order. An agent checks for itself what it is missing, for example by looking something up in a knowledge base, and only then answers. In the course you first build an ordinary automation, then turn one of its steps into an agent so you can see the difference.

How do I build an AI agent without coding?

You describe the process in plain words to an AI assistant: Claude, ChatGPT or Codex. Through the n8n-mcp connector the assistant builds the workflow in n8n, runs it and fixes the errors. You answer six questions about the process and judge the result. That is a no-code AI agent: you never write code.

What is a no-code AI agent?

A no-code AI agent is an agent you set up by describing what it should do, instead of programming it. In this course the AI assistant does the building in n8n, and you decide what the agent does and check that it works.

What is n8n?

n8n is a tool for automating processes. You assemble a process from blocks: a trigger, steps, and connections to email, spreadsheets, a CRM and AI models. It has over 500 ready-made integrations and can run in the cloud or on your own server.

Is n8n free?

The self-hosted version, which you run on your own server, can be used without licence fees, and you only pay for the server. n8n Cloud is a paid service with a trial period. For the duration of the course you get a ready account in my practice environment, so you install nothing and pay nothing.

Is the course really free?

Yes. The course, the practice environment and the AI models used in the exercises are free. You need your own account with an AI assistant, preferably on a paid plan. That is the only cost, and you pay it to the assistant's provider, not to me. The n8n-mcp.com account is on the free plan, which allows 100 tool calls per day.

Is a free ChatGPT account enough?

Probably not. A free ChatGPT account has no skills and no stronger models, so the assistant makes more mistakes and hits limits sooner. I tested the course on paid Claude, ChatGPT and Codex plans.

How long does the course take?

About two hours if you do all the exercises. The lessons are narrated and pause by themselves at the exercises, so you can stop anywhere and come back.

What happens after 14 days?

The practice environment account and its workflows are deleted automatically. The last lesson shows how to export the workflows beforehand and run them on your own n8n. The n8n-mcp.com account stays.

Can I enter my company's data?

Not in the practice environment. It is for learning: you work on a prepared training inbox, and as the administrator I can see the workflows. You connect real data only on your own n8n.

Do I get a certificate?

No. You finish the course with a working workflow that you can show and move to your own setup. I decided that is worth more than a PDF.

Find out when registration opens