MailChimp is an email marketing service, It is manage the subscribers of your website. MailChimp provides an easy way to integrate email signup form in your website and send the email newsletter to the subscribers. Beside the premium plan MailChimp also has a forever free plan. Using the free plan, you can add up to 2,000 subscribers to MailChimp and send 12,000 emails per month to the subscriber. In this tutorial, i will show you how to integrate newsletter subscription form in your website and add subscriber to list with MailChimp using PHP. We’ll use MailChimp API 3.0 and PHP to add subscriber to list without confirmation email. To integrate MailChimp API in PHP you need a MailChimp API Key and List I D where you want to add members. Before you begin, sign up for a MailChimp account and follow the below steps to get API Key and List ID. Creating API Key and List ID Get API Key: Login to your MailChimp account. Under the user menu drop...