If you want to connect your website or app with email marketing tools, you’ll need a Mailchimp API Key. In this guide, you’ll learn how to generate a Mailchimp API key quickly and securely.
Click: Create A Key and Give a name of your key,
After click generate key it will generate your API key instantly.
You’ll see something like: abc123xyz-us1
Click Copy and save it securely.
Add Mail chimp api key to Your Website.
Now add the copied meta tag to your website: