10
Casdoor - FOSS IAM SSO
(github.com)
If it's free and open source and it's also software, it can be discussed here. Subcommunity of Technology.
This community's icon was made by Aaron Schneider, under the CC-BY-NC-SA 4.0 license.
I might be wrong, but to me this looks more like a middle layer between your application and other provider to host a standardised API to all of them.