Before getting started, create an API key for Email API access. Detailed instructions are available in the documentation: Email API Documentation.

Go to the "API" section and click the "Create Key" button.

Enter a name and select a domain. If your domain is not verified, you can use the domain verification guide.

After filling in the fields, click the "Create" button.

After the key is created, it appears in the list of connected sending keys. Use the key ID in Email API requests as key_id.

To activate the API key, you need to contact support or write to the support chat on the website dashboard. You will be asked to specify for which project and for what purposes the API key will be used, as well as the approximate number of emails for sending. The activation process will take 5-10 minutes.

To start sending emails via API, use the Email API documentation.