Error code: 401 - {'error': {'message': 'Missing Authentication header or invalid API key', 'code': 401}}

[exponentiallyio]

Hello, it was working fine, then I used:
fabric --changeDefaultModel claude-3.5-sonnet

Now it throws this error whenever I run it:
Error: Error code: 401 - {'error': {'message': 'Missing Authentication header or invalid API key', 'code': 401}} Error code: 401 - {'error': {'message': 'Missing Authentication header or invalid API key', 'code': 401}}

I've tried running the setup again, changing the Default Model back, still the same error. And I've checked the API keys in ~/.config/fabric/.env and they're there

Would appreciate any help!

[exponentiallyio]

Hello, does anyone have any insight/suggestions on this? Thank you

[patonw]

Do you have an OpenAI key setup also or just Anthropic? It looks like fabric checks to see if OpenAI offers that model, and doesn't handle a missing API key:

fabric/installer/client/cli/utils.py

Lines 415 to 430 in dd4b896

	try:
	if self.client:
	models = [model.id.strip()
	for model in self.client.models.list().data]
	if "/" in models[0] or "\\" in models[0]:
	gptlist = [item[item.rfind(
	"/") + 1:] if "/" in item else item[item.rfind("\\") + 1:] for item in models]
	else:
	gptlist = [item.strip()
	for item in models if item.startswith("gpt")]
	gptlist.sort()
	except APIConnectionError as e:
	pass
	except Exception as e:
	print(f"Error: {getattr(e.__context__, 'args', [''])[0]}")
	sys.exit()

Also, claude models need to be suffixed by the model build number. In this case you'd need claude-3-5-sonnet-20240620.

[exponentiallyio]

Thanks @patonw . I've set up all the API keys. And I've tried openai, llama, claude models, with the same issue

It was all working fine until I changed the default model and now none of them work, puzzling

Also - I noticed I don't have claude-3-5-sonnet-20240620 when I use --listmodels, do I need to update it somehow?

Thanks!

[patonw]

Ah, if --listmodels doesn't include the following, then something is wrong with the configuration or configured key:

Claude Models:
claude-3-5-sonnet-20240620
claude-3-opus-20240229
claude-3-sonnet-20240229
claude-3-haiku-20240307
claude-2.1

The code simply checks for the existence of the key:

fabric/installer/client/cli/utils.py

Lines 409 to 413 in dd4b896

	if "CLAUDE_API_KEY" in os.environ:
	claudeList = ['claude-3-5-sonnet-20240620','claude-3-opus-20240229', 'claude-3-sonnet-20240229',
	'claude-3-haiku-20240307', 'claude-2.1']
	else:
	claudeList = []

Maybe dotenv is not able to find the file or the file is malformed. Check that any quote marks are closed, etc.