Shadcn UI v4 MCP Server

🚀 The fastest way to integrate shadcn/ui components into your AI workflow

A Model Context Protocol (MCP) server that provides AI assistants with comprehensive access to shadcn/ui v4 components, blocks, demos, and metadata. Seamlessly retrieve React, Svelte, Vue, and React Native implementations for your AI-powered development workflow.

✨ Key Features

• 🎯 Multi-Framework Support - React, Svelte, Vue, and React Native implementations
• 📦 Component Source Code - Latest shadcn/ui v4 TypeScript source
• 🎨 Component Demos - Example implementations and usage patterns
• 🏗️ Blocks Support - Complete block implementations (dashboards, calendars, forms)
• 📋 Metadata Access - Dependencies, descriptions, and configuration details
• 🔍 Directory Browsing - Explore repository structures
• ⚡ Smart Caching - Efficient GitHub API integration with rate limit handling, plus protocol cache hints (ttlMs/cacheScope) on list and read results
• ⌨️ Argument Completion - Autocomplete for prompt and resource-template arguments (component names, package managers, build tools, and more)
• 🌐 Streamable HTTP Transport - Stateless /mcp endpoint for multi-client deployments (MCP spec 2026-07-28)
• 🐳 Docker Ready - Production-ready containerization with Docker Compose

🚀 Quick Start

# Basic usage (60 requests/hour)
npx @jpisnice/shadcn-ui-mcp-server

# With GitHub token (5000 requests/hour) - Recommended
npx @jpisnice/shadcn-ui-mcp-server --github-api-key ghp_your_token_here

# Switch frameworks
npx @jpisnice/shadcn-ui-mcp-server --framework svelte
npx @jpisnice/shadcn-ui-mcp-server --framework vue
npx @jpisnice/shadcn-ui-mcp-server --framework react-native

# Use Base UI instead of Radix (React only)
npx @jpisnice/shadcn-ui-mcp-server --ui-library base

🎯 Get your GitHub token in 2 minutes: docs/getting-started/github-token.md

📦 One-Click Installation (Claude Desktop)

Download and double-click the .mcpb file for instant installation:

1. Download shadcn-ui-mcp-server.mcpb from Releases
2. Double-click the file - Claude Desktop opens automatically
3. Enter your GitHub token (optional, for higher rate limits)
4. Click Install - tools are available immediately

Manual install: Claude Desktop → Settings → MCP → Add Server → Browse → Select .mcpb file

References: Anthropic Desktop Extensions | Building MCPB

🌐 HTTP Transport & Docker Deployment

The server implements the 2026-07-28 MCP specification (via MCP TypeScript SDK v2) and stays compatible with 2025-era clients. To make your client use the modern protocol, or to require it, see the Modern Protocol Guide. Besides stdio, it can serve Streamable HTTP at a single stateless /mcp endpoint for multi-client and production deployments:

Quick Start with HTTP

# HTTP mode (stateless, supports many concurrent clients)
node build/index.js --mode http --port 7423

# Docker Compose (production ready)
docker-compose up -d

# Connect with Claude Code
claude mcp add --scope user --transport http shadcn-mcp-server http://localhost:7423/mcp