How to Use Google Cloud Identity as an OIDC Identity Provider for Custom third party Applications

[sbaldwa]

I’m trying to use Google Cloud Identity/Workspace as an OIDC (OpenID Connect) identity provider to integrate third-party applications (service providers) that support OIDC for authentication. However, I’m encountering difficulties because the documentation predominantly focuses on SAML, with only sparse references to OIDC.

I tried looking at the documentation and here’s what I’ve found so far:

• Most guides and references (e.g., Ref-1 , Ref-2   ) focus on SAML configuration. OIDC is mentioned occasionally (Ref ), but there’s no clear guide for integrating custom applications using OIDC.
• Additionally, I came across a  similar post (Ref) in the past, but it seems the question wasn’t fully addressed.

My specific requirements:

• I need to integrate a custom app, not one of the preconfigured apps available in the catalog, with GOOGLE CLOUD IDENTITY as the identity provider.
• I’m aware of the Google Identity Platform (CIAM), but that’s NOT what I want to use. My goal is to achieve this using only Google Cloud Identity.

Has anyone successfully configured Google Cloud Identity/Workspace as an IDP for custom apps using OIDC? If so, could you share the steps or point me to relevant documentation?