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CIVITAI API Connect not working #1245
Description
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This issue is stale because it has been open 60 days with no activity. Remove the stale label or comment, else this will be closed in 7 days.
This issue was closed because it has been stale for 7 days with no activity.
I'm experiencing a problem connecting StabilityMatrix (v2.15.0) to CivitAI with my API key.
Instead of connecting, I get a Japanese error: "無効なクラスです" ("Invalid class").I've confirmed my API key works by testing directly in PowerShell:
$apikey = "MY_API_KEY"
Invoke-RestMethod -Uri "https://civitai.com/api/v1/models?limit=1" -Headers @{ "Authorization" = "Bearer $apikey" }Response shows a valid model list (e.g., id=257749, name=Pony Diffusion V6 XL), so the key is valid.
It seems this error is specific to StabilityMatrix v2.15.0.
Could it be related to recent changes in the CivitAI API, or a bug in key handling?- added a commit that references this issue
on Jun 8, 2026
What happened?
Hy!
I want to connect to CivitAI and i paste the API key in the form and i get an error.
"Objectreference is not set to an instance of an object."
Steps to reproduce
No response
Relevant logs
Version
2.14.0
What Operating System are you using?
Windows