@hume I"m also seeing this error when I run the app on my iPad.

@althoff That did not work for me.

I used an Anthropic API Key that I created at platform.claude.com to get Claude Agent on Xcode and logged into Claude within Xcode using my Claude account. I opened a project and asked Claude if my Pro account is connected and got the reply that the 'Credit balance is too low'. Also, I didn't need to 'Get' Claude from within Xcode as I had already created a Pro account. I'm sorry to bother you, but I am still confused. I've used ChatGPT in Xcode, but I am stuck with Claude.

Did you connect to Claude via the sign-in or the api key? I did not have success signing in using the sign-in approach. Go to platform.claude.com/Settings/APIkeys and create an api key. Use the api key to get link Claude to Xcode.

You could sign up for the Claude Pro monthly payment account ($20/month) and then cancel, so that you are only trying it for one month. If you like it, you can decide whether to continue the subscription or keep it cancelled.