> For the complete documentation index, see [llms.txt](https://docs.getmesa.com/llms.txt). Markdown versions of documentation pages are available by appending `.md` to page URLs; this page is available as [Markdown](https://docs.getmesa.com/connect/mandrill.md). # Mandrill ### Connection When you're setting up your first workflow with Mandrill, you'll need to add your API key so that Mandrill is a connected app within MESA. Mandrill is a paid Mailchimp add-on so you must have it [enabled in your Mailchimp account](https://mailchimp.com/help/add-or-remove-transactional-email/).
Screenshot of the Mandrill step in the MESA workflow builder. Spotlight the API key connection field for Mandrill.
1\. You can locate your [API key](https://us4.admin.mailchimp.com/account/api/) by clicking your Account bubble, located at the top right on the Mailchimp Dashboard. Then, locate **Account and Billing** and click on it.
Screenshot of the Mailchimp Dashboard, click your Account bubble in the top right. Spotlight the Account and Billing menu item.
2\. Next, click on the **Extras** dropdown and select **API keys**.
Screenshot of the Mailchimp Account and Billing page. Open the Extras dropdown and spotlight the API keys option.
3\. Scroll down until you see **Your API Keys** and click on **Create A Key**.
Screenshot of the Mailchimp API keys page. Spotlight the Create A Key button under Your API Keys.
4\. Once you create an API key, copy the value via the **Copy to Clipboard** button**.**
Screenshot of the Mailchimp API keys page with a newly created key. Spotlight the Copy to Clipboard button.
5\. Then, paste that into your MESA's workflow's Mailchimp step and click on **Add Connection.** Afterwards, you are all set and you can re-use the newly created connection for your future workflows!