The Home Connect API uses the OAuth2 standard as defined in RFC 6749 in order to grant 3rd party access to home appliances which are paired to a Home Connect user account. Every request has to by authorized by an access token as defined in RFC 6750.
User (Resource Owner)
The owner of the home appliance. The home appliance must be paired to the user's Home Connect account.
The Home Connect system which enables the access to the user's home appliances.
A 3rd party application with the intention to monitor or control user's home appliances.
The Home Connect authorization server which issues access tokens to the client.