shadcn-ui-mcp-server and helixir
Both tools are MCP servers designed to provide LLMs with deep contextual knowledge about web component libraries, with the first specifically targeting Shadcn UI and the second aiming for broader applicability across any web component library, making them competitors with different scopes.
About shadcn-ui-mcp-server
Jpisnice/shadcn-ui-mcp-server
A mcp server to allow LLMS gain context about shadcn ui component structure,usage and installation,compaitable with react,svelte 5,vue & React Native
Implements the Model Context Protocol (MCP) with direct GitHub API access to shadcn/ui repositories, providing AI assistants with real-time component source code, demos, and block implementations. Supports dual transport modes—stdio for CLI and SSE for HTTP-based multi-client deployments—with intelligent caching and configurable GitHub token authentication for rate limit optimization. Enables framework-agnostic component integration with switchable primitive libraries (Radix UI or Base UI) and one-click installation via `.mcpb` bundles for Claude Desktop.
About helixir
bookedsolidtech/helixir
MCP server that gives AI coding agents deep knowledge of any web component library — properties, events, slots, CSS parts, design tokens, accessibility, health scoring, and more. Works with Claude, Cursor, Windsurf, and any MCP-compatible tool.
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