How can I turn off using my own API Key?

Hi I paid for Cursor which means I have 500 monthly fast request limit for using LLM models. But I never use it, I turn on using my own Claude API Key.

And now I found even if I turn off using my own API key, I can not using the 500 quota you provided, I constantly got
You're using your own API key, and we got the following error from Anthropic: {"type":"error","error":{"type":"authentication_error","message":"invalid x-api-key"}}

I tried to clear the API Key I set or delete and download Cursor app again, but it still fails to work.

I go through the same.
Its a bit confusing but I try to help.

Your paid Claude account (as mine) are for Web personal inferencing, to use api keys on 3rd programs, you must have a business apikey that is billed differently, same on OpenAI. Maybe Im wrong,

The thing on the Cursor pro request, is only when a pro model is using, for example GPT4o or Claude Sonnet 3.5 in specially when executes a long context request like use Chat (Ctrl + L) with several files attatched or when you launch a Ctrl + Enter call, instancing to read all your codebase finding related code to question, in that cases uses a fast (large) pro request.

Thanks for your explanation! My friend who has no Cloud API key himself, who also a paid Cursor user, however, can smoothly using the ā€œpremium modelsā€ of Cloud 3.5 Sonnet in his 500 request.

So I think we can surely use that quota no matter in which cases.

And for ā€œour paid Cloud account (as mine) are for Web personal inferencing, to use api keys on 3rd programs, you must have a business API key that is billed differently, same on OpenAI.ā€, Iā€™m not sure but I use heavily OpenAIā€™s API Key and Cloudā€™s API key in many places, so I think we can use them freely in any 3rd programs.

The bug in Cursor I think is, they forgot the logic when user has use their own API key and then turn off. I think they wrote the program like, once user has give their own API key, always use that (even if he turned off).

Hi @mazzzystar

I donā€™t think thatā€™s the case, could you share a screenshot of the models in Cursorā€™s settings?

cant you just try to revoke the api key from claude dashboard? maybe that will trigger something. curios because i also added my key and will probably buy cursor soon so i may be stuck in similar situation :grin:

Hi Iā€™ve planned to upload all screenshots in original post but Iā€™m new register and only allowed 1 image uploaded. (ā€œAn error occurred: Sorry, new users can only put one embedded media item in a post.ā€)

Below is the screenshot I took just now:

request ID: 8b03a6c3-cb49-4f52-98b8-f47618722741

Thank you!, I finally fixed this issue by deleting my Claude API Key that I created for Cursor, and toogle on & off the Claude API Key usage in Cursor.

Now I can see the quota usage and get a response even with my Claude API Key toggle off in CursoršŸ˜„

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