Personalized videos are one of the most powerful tools in modern marketing and sales. They create connection, build trust, and increase conversion rates dramatically – especially when they appear right after someone signs up or shows interest in your service.

In this article, I’ll show you how I built an AI Agent that creates personalized videos with Heygen, fully automated in n8n – no manual work needed.

🎯 The Use Case: Video Messages for Every Lead

Let’s say a new lead signs up via a contact form. Instead of a boring confirmation email, they instantly get a short video message – addressed to them by name.

For example:

“Hey Lisa, great to have you here! Here’s what we do and how we can help…”

This is 100% automated using Heygen’s Template V2 API, and runs fully in the background via n8n.

⚙️ Step 1: Get First Name & Last Name from a Form

You can use any form – WordPress, Webflow, or even Google Forms. I used a simple form on my website with two fields: first_name and last_name.

In n8n, you trigger the workflow with a Webhook node or Form submission trigger, and pass the name values into your flow.

🧪 Step 2: Choose or Create a Great Heygen Template

This step is key for quality.

Here’s what makes a good template in Heygen:

• ✅ Short & to the point: 15–30 seconds work best.
• ✅ Use variables smartly – e.g. first_name, company, offer.
• ✅ Background: Use your branding or something neutral and clean.
• ✅ Voice: Choose a natural tone that matches your audience.

Tip: You can create templates directly in Heygen under the Template Studio. Don’t forget to mark variable placeholders with double braces like {{first_name}}.

📡 Step 3: Call the Heygen Generate API in n8n

Now comes the API part.

You use a HTTP Request node in n8n with the following:

• Method: POST
• Endpoint: https://api.heygen.com/v2/template/<template_id>/generate
• Headers: X-Api-Key and Content-Type: application/json
• Body (JSON):

jsonKopierenBearbeiten{
  "caption": false,
  "title": "Personalized Video",
  "variables": {
    "first_name": {
      "name": "first_name",
      "type": "text",
      "properties": {
        "content": "John"
      }
    }
  }
}

You can add multiple variables like company, email, or offer_code – as long as they exist in your template.

⏳ Step 4: Wait Until Video Is Ready

After submitting, you’ll get a video_id – but the video is not instantly ready.

You need to poll the status with another HTTP node:

• Endpoint: https://api.heygen.com/v1/video/<video_id>
• Check if video_url exists. If not, wait 10–15 seconds and check again.

Tip: Use the IF node and Wait node in n8n to loop until the video is ready.

For longer videos, you might need 30–120 seconds.

🔗 Step 5: Embed the Video into Your Website

Once you receive the video_url, you can:

• ✅ Embed it into a WordPress post or custom HTML
• ✅ Send it via email (great for onboarding!)
• ✅ Show it directly in a dynamic landing page
• ✅ Store it in your CRM for future interactions

Here’s a simple embed HTML:

htmlKopierenBearbeiten<video width="100%" controls>
  <source src="https://video_url_from_heygen.mp4" type="video/mp4">
  Your browser does not support the video tag.
</video>

🎁 Pro Tips for Video Personalization

• 🧩 Use segmentation: Create different video templates per persona or industry.
• 🪄 Add UTM parameters to track engagement per video.
• 🧠 Reuse templates with dynamic fields – saves cost and keeps things fast.
• 📦 Optimize resolution: Start with lower quality during testing to stay within free credits.

🚀 What’s the Benefit?

• 💡 High-quality first impressions
• 💬 Increased engagement & replies
• 🤝 Trust through personalization
• 💰 Better lead conversion rates
• 🔁 Scalable automation

This is marketing automation with a human touch – and your AI Agent does all the work.

And here you can see the result:

Need Help?

Want to set up your own video-based AI Agent for lead generation, onboarding, or customer engagement?
I’d be happy to support you – reach out via ai-agent-lab.io