We use a standard API Key which can be found on the Admin Page. It looks like
# Example API Key BBMRRJ2-T424J8W-K9PQZZR-BOP924
Calling The API
To call the API, you need to include your API Key in the header of your request. You can do this by adding the following to your request:
curl --request GET 'https://api.supersend.io/v1/auto/contacts' \ --header 'Authorization: Bearer <API_KEY>'