Your username is your User ID and your password is your API Key. Both of these values are available from the dashboard.
To test your authentication without creating an image, use the
v1/ping endpoint. Authentication via cURL would look like the following.
Run the following in your terminal
# Replace UserID and APIKey with the values from the dashboard. curl -X POST https://hcti.io/v1/ping -u 'UserID:APIKey'