To interact with secured endpoints of the Model Monitoring API or Domino REST API, you must send an API authentication token or key along with your request. This parameter identifies you as a specific Domino user so Domino can check for authorization.
To authenticate your requests, include your API key with the header
Go to Account Settings.
Go to Settings > API Key to see your key.
|Anyone with this key can authenticate to the Domino application as the user it represents and take any actions that user is authorized to perform. Treat it like a sensitive password.