The API Type of Service Provider is a bit of an exception compared to the other types.
It's primary use is for Machine-to-Machine communication, so it does not have a user (human) to complete the signing in.
Instead, the User Authentication has already taken place before the API is called, and TrustBuilder will validate the Bearer Token, and check if the caller has authenticated and (possibly) proper authorization.
Therefore, there is no Identity Provider to link. The Authentication Scheme is also not applied.
User defined name of the Service Provider
User defined description of the Service Provider
Irrelevant for this type of Service Provider
Path that indicates where the Service Provider is located.
Hostname of the server (if another server than the Admin Portal Server is used). Subdomain and domainname.