Add instructions for setting API Key in environment

[DanielKehoe]

I'd like to add the Anthropic API key to my environment so I don't need to paste it into the interface each time I launch the application. Can you add instructions to the README?

[Joseph-M-Cook]

I noticed if I did not put my Anthropic API key into the GUI, I was still able to run the application and make authenticated requests with my credentials.

This is either because:

• The API key is cached after entered into the GUI once
• I previously set my environment variable for ANTHROPIC_API_KEY on my machine.

I would suggest trying:

MacOS/Linux:
export ANTHROPIC_API_KEY='your-api-key-here'

Windows:
setx ANTHROPIC_API_KEY "your-api-key-here"

https://docs.anthropic.com/en/docs/initial-setup

[Joseph-M-Cook]

Just opened up a pull request to include this in the documentation. Thanks for opening this @DanielKehoe