# Authentication

All  API endpoints requests are authenticated using [HTTPS Basic Auth](https://en.wikipedia.org/wiki/Basic_access_authentication). It requires you to provide an API key.

The API key to provide is a valid AcyMailing License key, you can find it in the [License tab](https://www.acymailing.com/account/license/) of your account.

<figure><img src="https://3826405458-files.gitbook.io/~/files/v0/b/gitbook-x-prod.appspot.com/o/spaces%2FCosW1WHkmfl9f2vUOzRX%2Fuploads%2FZRgbEkkU6vFhS3lqkZyv%2FAccount___AcyMailing_-_Email_marketing_platform.png?alt=media&#x26;token=1e063e9d-7a00-4f99-a098-34b6497d5b1f" alt=""><figcaption></figcaption></figure>