It looks like you’re having trouble completing the authentication process when trying to use Cursor in JetBrains. We’re sorry for the inconvenience!
Authentication issues like this need to be handled by our support team directly. The forum team doesn’t have access to the authentication systems needed to troubleshoot these problems.
Please email [email protected] for assistance. Include as much detail as possible about:
What happens when you try to log in (the “Authentication failed: Invalid params” error you’re seeing)
Any error messages you see
The email address you’re using to sign in
The log details you’ve included in your post would also be helpful to share with the support team.
Our support team will be able to investigate and help resolve your issue. We’ve unlisted this thread to keep the forum organized. Thanks for understanding!
Hey, thanks for the report. I see in the system info it says “Controller in Remote Development”. That means WebStorm is running via Remote Development, so the cursor-agent is running on the remote host and can’t open a browser to log in. That’s why you get the instant “Invalid params” error.
ACP doesn’t support browserless login in these environments yet. I’ve passed this to the team. Ideally the agent should print a URL you can open manually when no browser is available, but that’s not in place yet.
As a possible workaround, try SSH’ing into the remote host and run agent login before starting WebStorm. There’s a chance the CLI will print a URL that you can open in your local browser. It might not work though. If it hangs, stop it with Ctrl+C.
If Remote Development isn’t required and you can use WebStorm locally, the login should work normally there.