Add a key for any provider. The site loads every model your key can use, and you pick one from the model menu, or leave it on Auto. A Tavily key turns on real web search. The Hugging Face token is optional and only used by the image-to-3D tool.
Keys typed into a web page stay in this browser and can be read by anyone using it. Keys written in keys.js or keys.json can be read by anyone who knows that file's address, so only put real keys there on a site you don't share.
With a password the saved keys are encrypted (AES-256) and unreadable without it. If you forget it, just add the keys again.