Build Your First AI Workflow in n8n This Weekend

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If you've been meaning to dip your toes into AI automation but keep putting it off because it all sounds too technical, this weekend is your moment. n8n is a visual workflow tool that lets you connect apps, trigger actions, and inject AI into your daily grind — without writing a single line of code. And the best part? You can go from zero to a working AI assistant in about two hours, armed with nothing but a free n8n account and a bit of patience. In this guide, I'll walk you through building your first AI workflow from scratch, using a real-world example that actually saves you time. By Sunday evening, you'll have something you can show off — and use.

Why n8n and What Does It Cost?

n8n is an open-source automation tool, often described as a self-hosted alternative to Zapier or Make. You can run it on your own machine, a Raspberry Pi, or a cloud server, but for this weekend project we'll use the cloud version because it's the fastest way to get going. The free tier gives you 250 workflow executions per month, which is plenty for testing and light personal use. If you outgrow it, paid plans start at around £20 a month, but don't worry about that yet. For AI features, you'll also need an API key from OpenAI or Anthropic. A typical AI call costs fractions of a penny, so running a few hundred test runs will set you back less than a couple of quid. All you need is a Google account, an n8n account, and an OpenAI API key (you can get one from platform.openai.com — it takes five minutes).

The Project: An AI-Powered Meeting Notes Digester

Here's the scenario. You attend a lot of meetings, and you're rubbish at taking notes. You record the audio on your phone, but it sits in your voice memos app forever. Let's build a workflow that takes a meeting transcript (you can generate one with Otter.ai or just paste a rough transcript) and turns it into a structured summary with action items, decisions, and key questions. This is genuinely useful, and it teaches you the core n8n concepts: triggers, data transformation, and AI nodes.

First, create a new workflow in n8n. Add a Manual Trigger node — this lets you run the workflow with a click. Then add a Code node (it's JavaScript, but don't panic — you'll just paste a snippet). In the code node, paste this:

// Paste your meeting transcript below
const transcript = `
Team sync 10am — discussed Q3 launch.
Sarah will finalise the pricing page by Friday.
John raised concerns about the email provider's deliverability.
Decision: use Mailchimp for now, revisit in October.
Action: Alex to draft the launch email by Wednesday.
Next meeting: Thursday 11am.
`;
return [{ json: { transcript } }];

This just simulates a pasted transcript. In a real setup, you'd connect a Google Drive trigger or a webhook, but this keeps things simple for the first build.

Adding the AI Brain

Now for the fun part. Add an OpenAI node (or Anthropic if you prefer). Connect it after the code node. In the node settings, choose 'Message a Model' or 'Text Completion' depending on your n8n version. You'll need to paste your API key into the credentials section. Then, in the prompt field, use this exact prompt:

You are an expert meeting summariser. Given the transcript below, produce a concise summary with three sections: 'Key Decisions', 'Action Items' (with owner and deadline), and 'Open Questions'. Use bullet points. Be specific. Transcript:
{{ $json.transcript }}

The {{ $json.transcript }} part is how n8n injects the data from the previous node. This is the magic — you're chaining data through nodes. Run the workflow by clicking 'Execute Workflow' and watch the AI node return a beautiful summary. If it doesn't work first time, check your API key and that the code node is outputting correctly.

Making It Useful: Save to Google Docs and Email

A summary that sits in n8n's logs is useless. Let's send it somewhere you'll actually see it. Add a Google Drive node after the OpenAI node. Configure it to create a new Google Doc. In the 'Content' field, use {{ $json.output }} (or whatever the output field is called — check the node's output schema). Name the file something like 'Meeting Notes {{ $now.toFormat('yyyy-MM-dd') }}'. That dynamic date means you get a new doc every time you run it.

Then add an Email node (use your Gmail or Outlook account via n8n's built-in connectors). Set the subject to 'Meeting Summary — {{ $now.toFormat('dd MMM') }}', and in the body, paste the same output. Now you've got a workflow that takes a transcript, summarises it with AI, files it in Google Drive, and emails you a copy. All in about 15 minutes of clicking.

If you'd rather skip the manual setup and get straight to a polished, tested version of this exact workflow — plus a few other handy ones — I've put together a pack of n8n Starter Workflows that you can import in minutes. They include this meeting digester, a daily news briefing, and a social media content generator, all pre-configured with sensible prompts and error handling. From £9, it's cheaper than a takeaway and saves you the head-scratching.

Next Steps: Turn It Into a Scheduled Automation

Once you've got the manual workflow working, take it up a notch. Replace the Manual Trigger with a Schedule Trigger — say, every Monday at 9am. Then add a Gmail node to fetch unread emails that contain 'meeting notes' in the subject, and feed those into your AI node. Now you've got a fully automated system that processes your meeting emails, summarises them, and files them — no button clicking required. That's the real power of n8n: you start with a manual demo, then add triggers and watch it run itself.

One tip from experience: n8n's error handling can be cryptic at first. If something fails, look at the output of each node by clicking on it — the data flow is visible, and you'll quickly spot where the chain breaks. Also, keep your API keys in n8n's credential store, never hardcode them in nodes. And remember, the free tier is fine for this weekend, but if you're building something you rely on daily, the £20/month Starter plan gives you 10,000 executions and better support.

What Else Can You Build This Weekend?

Once you've got the basics, the sky's the limit. Here are three ideas you can knock out in an afternoon each:

• AI Content Repurposer: Take a blog post URL, have n8n scrape it (using the HTTP node), then send it to AI to generate a LinkedIn post, a tweet thread, and an email newsletter — all in one go.
• Inbox Zero Assistant: A workflow that runs every morning, reads unread emails, uses AI to categorise them (urgent, read later, unsubscribe), and labels them in Gmail automatically.
• Personal Research Assistant: Trigger with a keyword, use n8n to search Google News or a Reddit feed, then have AI write a summary briefing. Perfect for side hustlers tracking competitors.

Each of these uses the same building blocks you've already learned: trigger, fetch data, call AI, output somewhere. Once you've done one, the rest are variations on a theme.

Final Thoughts

Building your first AI workflow in n8n is less about technical skill and more about thinking in steps: what data goes in, what you want out, and where it should land. This weekend, you can build something that genuinely saves you hours every week — and you'll have learned a skill that's increasingly valuable in any job or side hustle. Start with the meeting digester, get comfortable with the nodes, then let your imagination run wild. And if you want a head start, grab a copy of the n8n Starter Workflows pack — it's the shortcut I wish I'd had when I started. Now go build something.