Marmo UI vs Mowgli

Marmo UI pairs an open-source React design system with a hosted MCP server to help AI agents compose dashboards and apps using named @marmoui/ui components. The server provides live component APIs, composition patterns and generation rules; generated files pass through a review step that checks imports, props and compositions. The library includes more than 50 production-ready components and comes with Storybook and a Figma library. Developers install the React package with npm. The free plan includes documentation, the design tools and MIT-licensed core components, and allows unlimited projects, commercial use and no rate limits. Pro adds generation guided by a DESIGN.md file with brand details, plus composition patterns, Pro blocks, a hosted design-system site and priority support. It costs $9.99 per month, and a 14-day trial is listed. Integration instructions cover Claude Code, Codex, Cursor, Gemini CLI, Windsurf and other MCP clients. Generated code belongs to the user, uses the user’s own LLM tokens and stays in the user’s repository; it does not phone home.

Mowgli is an AI design canvas for mobile, web, and desktop apps, aimed at builders shaping a product before implementation. It can generate high-fidelity screens, flows, and states, and turn an idea into a product requirements document with screens, features, and user flows. Moodboards offer 16 or more visual styles, with color palettes and typography moods. Designs can become interactive prototypes with navigation and transitions. Users can import Figma designs for AI editing and export to Figma, React components, or an AI-ready package. MCP connections let Claude, Codex, Cursor, and other compatible apps move designs and product screens between Mowgli and a codebase. A free plan includes 300 credits, Figma import, coding-agent connection, and full version history. Annual-billing plans are listed at $12.00 per month for Starter, $20.00 per month for Pro, and $49.00 per month for Team. Team adds real-time canvas collaboration and person-attributed version history; unused credits expire under subscription or credit-pack billing rules.