How to Connect OptinMonster with Klaviyo

OptinMonster offers seamless integration with the Klaviyo email marketing service. Connecting OptinMonster to your Klaviyo email list is very easy. Follow our step by step guide on how to connect OptinMonster with your Klaviyo account.

  1. Integrations Tab
  2. Log into Your Klaviyo Account
  3. Create or Copy the Klaviyo API Key
  4. Enter the API Key
  5. Select a List
  6. Configure Lead Options (optional)
  7. Frequently Asked Questions

Step 1 – Integrations Tab

In the optin builder, select the Integrations tab to view the Integrations panel.

Select the Integrations tab in the optin builder to begin connecting your Email Service Provider to OptinMonster.

If this is your first time connecting an integration to your optin you’ll see a “New Integration” item in the Integrations panel of the builder. Select that to begin configuring your integration.

Select the New Integration item to begin connecting your Email Provider to OptinMonster.

Next, select Klaviyo from the Email Provider dropdown.

Select the Email Provider from the dropdown list to begin connecting them to your OptinMonster optin.

Step 2 – Log into Your Klaviyo Account

To obtain your Klaviyo API credentials, log into your Klaviyo dashboard and navigate to your Account page from the dropdown menu next to your avatar and name.

Once logged into your Klaviyo account, navigate to the Account page.

On the Account page, you will need to select the API Keys link under the Settings drop down menu.

You can find your API Keys under the Account page's Settings menu.

Step 3 – Create or Copy the Klaviyo API Key

If you haven’t already created a specific API Key you wish to use, select the Create API Key button.

You can create a new API Key by selecting the Create API Key button in your Klaviyo account.

When creating a new API Key, go ahead and give it a proper Label as well so you can easily identify where you’re using the API Key in the future. Select the pencil icon under the Label column:

You can give your API Key a unique label to easily recognize it later.

A popup will appear for you to enter the API Key Label, when you’re finished select the Save API Key button.

Enter your API Key Label in the popu, then select Save API Key to continue.

Now that you have an API Key ready, copy it and return to the optin builder.

Step 4 – Enter the API Key

In the optin builder, paste your API Key into the corresponding field. Don’t forget to add a unique label for easy identification! Then, select the Connect with Klaviyo button.

Select the Connect with Klaviyo button to finish connecting Klaviyo with OptinMonster.

Step 5 – Select a List

OptinMonster will now connect to your Klaviyo account and fetch your email lists. Select an email list you want users to subscribe to.

Select a List to add new subscribers to in Klaviyo.

Step 5 – Configure Lead Options (optional)

Once you’ve selected a List, if you have a paid account with Klaviyo you can optionally disable double opt-in for your optin in the Lead Options section of the Integrations panel.

You can optionally configure additional Lead Options for your Klaviyo integration.

That’s all, you have successfully connected OptinMonster to your Klaviyo account!


Frequently Asked Questions

Q) How Can I send the Referral URL with the Lead so I know on what page the Visitor Signed Up?

A) This happens automatically. In Klaviyo, this will be in a custom property called referrer.


Q: Is it possible for me to add a Phone Field to my optin?

A: Yes! You can add a phone field. Check out How to Capture Phone Numbers with OptinMonster here.