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OIDC is for authentication and profile information. The standard claims refer to each field of profile information [1].

It doesn't include any domain-specific operations like your examples.

[1] https://openid.net/specs/openid-connect-core-1_0.html#Standa...

A bit late: you're correct, but it does provide a standard API for looking up additional metadata, even if it's non-standard. That's using custom claims and/or the user info endpoint (which can include custom claims). You can use custom scopes to limit what is available as well.

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