This is a localhost bridge that lets Claude and other MCP clients draw and read Figma designs without an API key. It spins up an HTTP server on port 38451 that the bundled Figma Desktop plugin polls for commands. You get `figma_write` to create frames, text, shapes, and prototypes with JavaScript-style calls, `figma_read` to pull back node trees, resolved color variables, component instances with variant labels, and CSS snippets, and `figma_rules` to export your entire design system as a token sheet. The read side now resolves variable bindings and style references inline, so you see hex values and font names instead of IDs. Requires Figma Desktop because the web app blocks localhost. Useful when you want Claude to scaffold UI directly on canvas or generate React code from live designs without copy-paste.
claude mcp add --transport stdio tranhoaihung-figma-ui-mcp uvx figma-ui-mcp