Capture a site you've built into the CMS. Only the name + URL (or HTML) are required — everything else can be set later from the project's tile.
The fallback key for projects that don't have their own. Stored on your server, never shown again.
The fallback Vercel for projects that don't carry their own token. Create a token at vercel.com/account/tokens.
Your master key (advanced). It's filled automatically when you log in — you rarely need to touch it.