Paste your app's URL and a few details. Get the full .well-known/farcaster.json manifest and the HTML meta tags you need to add. Both are required to make your Mini App embed properly in casts.
Auto-defaults to {homeUrl}/embed.png
Auto-defaults to {homeUrl}/icon.png
Manifest: a JSON file served at /.well-known/farcaster.json. Farcaster's app discovery / curation pipeline reads this to list your app, render the splash screen, and verify ownership.
Meta tags: in your HTML <head>. These are scraped when someone casts your URL. They tell the Farcaster client how to render the embed inline: image, button label, what the button does (launch the Mini App).
If you have only the manifest, the catalog might find you but in-feed casts won't show the rich tile. If you have only the meta, casts work but the catalog won't pick you up.
The fc:frame tag is also generated for backward compatibility — Frame v1 is what older clients/some integrators understand. With both, your app embeds in every client that's ever spec'd this.