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Email Marketing

Klaviyo List Growth Tracker

Track your email list health by analyzing new subscribers vs unsubscribes over the last 30 days. Most marketers only look at total subscriber count, but that hides the full picture. If you're gaining 500 subscribers but losing 400, your net growth is only 100. This tool reveals whether your list is actually healthy or slowly dying — and if acquisition efforts are outpacing churn.

Run Automation

🔒I don't store your API keys

⚠️ Use a READ-ONLY API key for safety. Found in Klaviyo → Settings → API Keys → Create Private API Key → Select 'Read-Only' access

Results

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Run the automation to see your results here

Want to run this yourself?

Download the n8n workflow JSON and import it into your own n8n instance

</>n8n Workflow

How to use:

  1. Click Download or Copy the JSON
  2. In n8n, go to Add workflow → Import from file/clipboard
  3. Open the "⚠️ SET YOUR API KEY" node
  4. Replace pk_YOUR_API_KEY_HERE with your Read-Only Klaviyo API key
  5. Save and run!
{
  "name": "Klaviyo List Growth Tracker",
  "description": "Track new subscribers vs unsubscribes to see if your list is healthy.",
  "how_to_use": [
    "1. Import this JSON into your n8n instance",
    "2. Activate the workflow",
    "3. The webhook will be available at /webhook/klaviyo-list-growth",
    "4. Send a POST request with { klaviyo_api_key: 'pk_xxx' }",
    "5. View the growth analysis results"
  ],
  "nodes": "See /workflows/klaviyo-list-growth-tracker.json for full workflow"
}

This is a standalone workflow - no sub-workflows needed!