Automatically closed - issue fixed for 2 weeks with no activity.
I recently released a D8 version of something very similar to this module. It allows for per-user key authentication. I thought you'd want to add it to the related modules part of the project description.
Fixed
1.0
Code
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It's likely this issue predates Contrib.social: some issue and comment data are missing.
Automatically closed - issue fixed for 2 weeks with no activity.