Vinish Bhaskar

May 13 2024

How to integrate Mailchimp with Boilerplate or Templates

Learn how to seamlessly integrate Mailchimp into Next.js Boilerplate/Template, enabling you to create, send, and track effective email marketing campaigns.

How to integrate Mailchimp with Boilerplate or Templates

Mailchimp is a powerful email marketing tool that helps you connect with your customers, drive engagement, and grow the business. Specifically, It can add subscribers, manage email lists, and craft compelling email campaigns.

Furthermore, integrating Mailchimp with a boilerplate/template can supercharge marketing efforts by automating email campaigns, organizing subscribers, and tracking engagement. This opens up a world of possibilities for your business growth.

In this article, we will show you how to integrate MailChimp into the SaaS Boilerplate / Template.

Note: For smooth integration, we will consider SaaSBold—Next.js SaaS Boilerplate.

Why Mailchimp?

Before diving into the integration process, let's explore why Mailchimp is an excellent choice for email marketing.

  • Subscriber Management: Automatically add new users to your Mailchimp audience list.
  • Targeted Campaigns: Send newsletters and targeted emails to specific segments of the user base.
  • Data-Driven Insights: It helps you to understand your audience and plan your strategy.
  • Scalability: It grows with your business, from small startups to large enterprises.
  • Rich Features: Offers email automation, audience filtering, A/B testing, templates, and more


  • Next.js SaaS Boilerplate/ Template: Choose your preferred boilerplate (e.g., Solid, SaaSBold). Make sure it's ready for integration.
  • Mailchimp Account: If you don't have one, create it.

MailChimp Integration

Here's a step-by-step guide to help you integrate Mailchimp with Boilerplate/ Template:

1. Create a Mailchimp Account: If you don't have a Mailchimp account, go to and click the "Sign Up Free" button to create a free account.

Please Fill out your personal and business information. Verify your email address by clicking the link sent to your inbox.

2. Create a Mailchimp Audience: Navigate to Audience Dashboard > Manage Audience > Settings.

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3. Audience ID: Scroll to the bottom of the page to find the Audience ID.

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Mailchimp API Key

Here are the Steps to get the Mailchimp API Key:

1. Navigate to API Keys: Go to your Mailchimp account settings. Under "Extras," find "Your API keys."

2. Create an API Key: Click "Create A Key" if you don’t have one.

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3. Generate API key: Provide the name for the new API key and click the "Generate Key" button to generate it.

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4. Copy API Key: Copy the generated API key as needed for the integration.

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Mailchimp Server Prefix

Look at the URL while logged into Mailchimp. It should look like The part before (e.g., usXX) is your server prefix.

Update Environment Variables

Here are the Steps to update the.env file with variables.

1. Open the .env file in your boilerplate/template project.

2. Update the following lines, replacing placeholders with your actual credentials ( We have copied above) :


For Example:


You're Done!

That's it! You've successfully integrated Mailchimp with your Boilerplate or templates.

Unlock the full potential by enabling automated email campaigns, organized subscriber management, and engagement tracking.

Remember, your email list is a goldmine, so treat it right, keep it clean, and watch your business grow.

Happy emailing!

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