n8n, the go-to tool for building A.I. workflows and agents

What is n8n and why is it the smart engine behind A.I. agents?

What is n8n?

n8n (pronounced "n-eight-n") is an open-source workflow and automation platform where you build, connect, and extend processes using visual "nodes." Where tools like Zapier and Make are often limited to pre-built integrations, n8n gives you more flexibility, extensibility, and programmatic control. You can write your own nodes in JavaScript, build in complex logic, and either self-host it or use the cloud version.

Since 2025, n8n has been firmly in the spotlight: in October 2025 the company raised $180 million in a Series C funding round, pushing its valuation to $2.5 billion. That investment says a lot about its ambition: n8n doesn't just want to automate workflows — it wants to orchestrate A.I., tools, and human logic together.

What does n8n actually do, and what are "A.I. agents" in this context?

The basics of an n8n workflow

• Start with a trigger (e.g. a webhook, a schedule, a notification)
• Process data through nodes (API calls, parsing, transforming)
• Build in conditional logic (switch, if)
• Connect external services (webhook, HTTP request, database)

From A.I. workflows to A.I. agents

• An A.I. workflow uses an LLM to carry out a task (summarizing, translating, analyzing)
• An A.I. agent decides on its own, with access to tools like email, a calendar, or web search

Why choose n8n agents?

• Combine A.I. power with workflow logic
• Full control over the prompt and the output
• Tools, memory, and interaction are all extendable
• Integrates cleanly with your existing systems

Tips & tricks from the n8n Community Night

Together with Flowkify, we organize an n8n community night. The first one took place in Belgium on October 7, 2025, and more events are already planned in the coming months in Antwerp, Brussels, and once again in Ghent. You can find more information about the n8n community night at https://aicommunity.be/

Theme	Tip / Trick
Agent structure	Make a clear distinction between a workflow, an A.I. workflow, and an agent
Prompting	Use XML prompting for more structure
Output parsing	Make sure A.I. output is usable in n8n by running it through a parser
Tools & permissions	Give the agent access to tools via nodes
Time context	Add a timestamp to your prompts
Model choice	Pick lightweight models for speed, heavier ones for complexity
Memory management	Limit memory to save on tokens
Error handling	Build separate error workflows for monitoring

Two cases: how Flowkify uses n8n agents with clients

1. Social media agent for M vastgoed

• Generates content based on new listings that go live on the website
• Schedules posts via API
• Uses XML prompting for consistent output

2. A.I. notetaker agent (multiple clients)

• Turns audio or a transcript into action points
• Writes summaries
• Automatically sends out minutes and tasks
• Integrates with your CRM, ERP, and more, like Odoo, AdminPulse...

How to start building n8n agents yourself

1. Install n8n (cloud or self-hosted)
2. Set up your trigger node
3. Add an A.I. agent node (model, prompt, tools, memory)
4. Build your tools (API, mail, database)
5. Design your prompts (in XML!)
6. Process the output in a structured format
7. Add an error flow
8. Test, debug, and refine
9. Monitor performance and cost
10. Deploy and scale

Why A.I. agency Flowkify?

• A Belgian A.I. agency focused on n8n A.I. workflows & agents
• End-to-end guidance: from idea to working agent
• Deep knowledge from both the community and hands-on practice
• A team of 7 A.I. experts, including A.I. consultants and A.I. developers

FAQ about n8n agents & Flowkify

1. What is an n8n agent? An A.I.-driven part of your workflow that makes decisions on its own.

2. What is XML prompting? A structured way of prompting that makes the output more reliable.

3. Does Flowkify work for my industry too? We focus on companies with a large back office, or service-based businesses — from accounting to construction. What we don't do is optimize machinery with A.I.; our focus is on business efficiency in processes like marketing, sales, HR, admin, finance, and so on.

4. What does an agent like this cost? Flowkify builds custom solutions, depending on your tools, flows, and needs.

5. How fast can it go live? On average 2 to 4 weeks, depending on complexity.

6. What are some concrete use cases? Sales agents, A.I. notetakers, email agents, calendar management, and more. You can find all our cases on our A.I. case studies page.

7. Can I combine this with my CRM or HR tool? Yes, n8n integrates with just about any platform that offers an API.