[Tiberium]

Are you sure it was only stored in your space secrets? Not variables (which are public) or stored in the .env file (also public).

[foolishbard]

I searched everywhere for any other leaks of it and found nothing.

[pvtmert]

i think you can ask Anthropic to provide access data (IP addresses, User Agents etc) specific to your key.

Then you can challenge hugging-face (eg paying customer) even sue them if you wish to...