How to Connect Mailchimp to a WordPress Form?

Key Takeaways

  • Connects the Nexter Blocks Form block to Mailchimp for automatic subscriber addition.
  • Requires a Mailchimp API Key and Audience ID for integration setup.
  • Utilizes the Action After Submit tab in the Form block to configure Mailchimp settings.
Table of Contents

Looking to grow your email list with Mailchimp right from your WordPress site? By connecting your form to Mailchimp, you can automatically add new subscribers to your audience list.

With the Form block from Nexter Blocks, you can easily connect your Mailchimp account to your WordPress form.

To check the complete feature overview documentation of the Nexter Blocks Form block, click here.

Requirement  – This block is a part of the Nexter Blocks, make sure it’s installed & activated to enjoy all its powers.

Learn via Video Tutorial

Youtube video

For this, you must have a Mailchimp API Key and Audience ID.

Get Mailchimp API Key

Create an account in Mailchimp if you don’t already have one. Once you are logged into your account, follow the steps – 

1. Click on the user profile on the top right.

2. Then click on Account & billing from the dropdown.

3. On the next page, go to Extras > API keys.

4. Then click on the Create A Key button on the next page.

5. On the next page, add a name for the API key and click on the Generate Key button.


Now you’ll have your API key, copy it into a notepad.




Find Mailchimp Audience ID

To find the Mailchimp Audience ID, follow the steps – 

1. From the left sidebar, go to Audience > All contacts.

Note: If you have multiple audiences, then you have to select the audience of which you want the ID from the Contacts dropdown.

2. On the next page, click on Settings.

3. In the Settings page, you’ll find the Audience ID.



Use the Form Block

Now, add the Form block to the page and select the appropriate form type, then follow the steps –

1. Add the required form fields and customize them as per your requirements.

2. Then select the main form block and go to the Action After Submit tab and select Mailchimp from the Options dropdown.

3. Now you’ll see the Mailchimp tab, open it.

4. Then add your API key and Audience ID in the API Key and Audience ID fields.

Now, when a user fills out your form, they will be automatically added to your Mailchimp audience list.

About the Author

Photo of Aditya Sharma CMO of Nexter
CMO at POSIMYTH Innovations · Nexter · 7 years experience

He has spent years in the WordPress ecosystem building, breaking, and optimizing sites until they actually perform. He works at the intersection of speed, growth, and usability, helping creators ship websites that load fast and convert. An active WordPress community contributor sharing through tools, tutorials, and direct collaboration. Tested practice, not theory.

WordPressThemesElementorn8nAIClaudeAutomationServer

Share your Thoughts

Still in Doubt? Let’s Assist You

Have Feedback or Questions?

Join our WordPress Community on Facebook!