How to Connect OptinMonster with ConvertKit

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

  1. Integrations Tab
  2. Log into Your ConvertKit Account
  3. Enter the API Key
  4. Select a Form
  5. Configure Lead Options (optional)
REQUIREMENT: Our native ConvertKit integration requires a Plus subscription. However, you can still use our Custom HTML integration with a lower subscription.

Step 1 – Integrations Tab

If you’re uncertain how to add your integration, you can follow our guide for connecting to Email Service Providers and CRMs.

Next, select ConvertKit from the Email Provider drop-down.


Step 2 – Log into Your ConvertKit Account

To obtain your ConvertKit API Key, log into your ConvertKit dashboard and navigate to your Account Settings page from the top menu.

ConvertKit Account Settings

On the Account page, you will need to copy your API Key from the Account Settings section.

ConvertKit API Key

Step 3 – Enter the ConvertKit API Key

In the Builder, paste your API Key into the corresponding field. Don’t forget to add an account label for easy identification! Then, select the Connect to ConvertKit button to connect your ConvertKit account with OptinMonster.

Connect to ConvertKit

Step 4 – Select a Form

OptinMonster will now connect to your ConvertKit account and fetch your email forms. Select an email form you want to add subscribers to.

ConvertKit Form

Step 5 – Configure Lead Options (optional)

You can also optionally assign Subscriber Sequences and Subscriber Tags.

ConvertKit Lead Options

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


Q: How do I configure single or double opt-in?

A: See our guide on single vs. double opt-in for ConvertKit.

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

A: Yes! You can add a phone field. Check out how to capture phone numbers with OptinMonster.