How to Build an Agentic AI Workflow in n8n Using a Single Prompt?

Recently, we showed you the latest n8n feature called AI Workflow Builder, which allows users to build a multi-step agent or a whole agentic system using a single text prompt. Today, we will show you how to use the feature inside n8n to build an agentic AI workflow using a single prompt.

Previously, using n8n required you to have some knowledge or understanding of how to code or how to use its drag-and-drop feature and connect nodes. Now, with this new AI Workflow Builder, anyone with zero coding knowledge and understanding of deep technical aspects can build an AI workflow automation.

Key Features and Functionality:

• Natural Language Prompts: Simply describe that automation you want to build, and the AI Workflow Builder will generate a draft workflow for you.
• Automated Workflow Construction: The builder handles node selection, placement, and configuration, saving you time and effort.
• Iterative Refinement: You can improve, expand, or adjust the generated workflow directly in the editor using multi-turn interaction.
• Real-time Feedback: The builder provides real-time feedback throughout several phases so that you can monitor the build process.
• Technical Control: While the AI handles the initial construction, you retain full technical control to make adjustments and fine-tune the workflow.

How to build an agentic AI workflow in n8n using a single prompt:

The process of working with the AI builder is straightforward and easy.

Step 1: You must sign up for n8n if you are not a platform user. This AI feature is available for free to Cloud users on the 14-day Trial, Starter, and Pro plans.

• Once logged in, start by clicking on Create workflow, so that you can either start from scratch or use the AI feature to instantly start building a workflow.

Step 2: Once you are in, click on Build with AI. On the right-hand side, you will have the option to enter the prompt for the AI automation you want to build. If you are just trying the feature, you can choose from the existing examples below the prompt box.

Step 3: As the builder works its magic, you can monitor the progress in real-time. The AI Workflow Builder searches for accurate nodes by retrieving their details, adds all nodes to the empty canvas, and finally appropriately connects them.

Step 4: Once the automation has been built, users can add the required API keys and credentials to run the workflow and review it. You can improve the automation and make other adjustments using prompts. Yes, it is that simple.

This AI workflow builder offers a more collaborative process of building multi-step agents and whole agentic systems using n8n's built-in AI. It allows you to move from automation ideas into real implementation faster than before, without sacrificing the technical control that is crucial while building reliable and scalable automations.

Now that I have finally tried it myself, I can confidently say that if you want to build an automation using n8n but don't have enough time or technical knowledge, you should try this feature now. It is simple and fast. You can try it for free as it is included in the n8n free trial offer, so you can give it a crack, and you might just love it. Make sure to keep track of your API usage and try to understand how your automations have been built so you have a better understanding of how things work.