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How to Get the Klaviyo API Key

Updated on:
June 5, 2026
By:
Madhav Bhandari
Use this interactive demo to learn how to find and generate your Klaviyo API key in minutes.

Quick summary

The Klaviyo API key allows you to connect your Klaviyo account with third-party apps and internal tools. You can access both the public API key and create a private API key directly from the Klaviyo Settings menu.


Steps

  1. Go to the bottom-left section of your Klaviyo dashboard and click the Company tab.
  2. Tap Settings to proceed to the account settings area.
  3. Select API Keys from the list of available options.
  4. Locate your public API key under the Public API Key / Site ID section and copy it for use.
  5. To create a private key, scroll down and click Create Private API Key.
  6. Enter a unique Private API Key Name into the provided input field.
  7. Select your preferred access level by ticking the radio button next to the desired option.
  8. If applicable, specify your preferred API scopes for the key.
  9. Review your inputs and click Create to generate the key.
  10. Your new private API key will be generated instantly and is ready to use for integrating compatible apps with your Klaviyo account.

📌 Why this matters

Knowing how to locate and generate a Klaviyo API key is essential for anyone integrating Klaviyo with external platforms, eCommerce tools, or custom applications. The public API key enables front-end tracking and data collection, while the private API key grants controlled programmatic access to your Klaviyo account for automation and deeper integrations. Setting the correct access level and API scopes ensures your integrations remain secure and scoped to only the permissions they need. This process is a foundational step for marketers and developers looking to maximize Klaviyo's capabilities across their tech stack.
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