Fantasma

Fantasma is a visual builder for Ghost themes. Its MCP server gives your AI agent the same project you edit in the builder, so you can ask for a theme in plain words and then open the canvas to check or change its work.

The agent reads your project, looks up the real sections, blocks, patterns and settings, and edits them through focused, revision-checked changes. It sets color schemes, font pairings and spacing once for the whole theme instead of block by block. It uploads images and fonts, saves versions, and renders screenshots of any template on desktop, tablet and mobile so it can see what it built. A design check flags contrast problems and leftover sample content.

When the theme is ready, the agent can preview it with your real Ghost posts, prepare the theme ZIP, or publish it straight to your Ghost site. Publishing is a separate permission that starts switched off, and the agent asks you before it publishes, deletes or restores anything.

You sign in with your Fantasma account and choose what each app may do. You can change or remove that access in Account settings at any time. MCP works on the Free plan with the same limits as the builder. Downloading and publishing a theme need Pro.