MCP

The shadcn MCP server lets AI assistants browse and install onchain-ui components. It reads the component index at /r/registry.json.

Setup

onchain-ui is listed in the shadcn registry directory, so one command registers the @onchain-ui namespace in your project's components.json:

npx shadcn registry add @onchain-ui

Or add it by hand:

{
  "registries": {
    "@onchain-ui": "https://onchain-ui.dev/r/{name}.json"
  }
}

Then initialize the MCP server for your client:

npx shadcn mcp init --client claude

Use --client cursor, --client vscode, or --client codex for other assistants. The MCP server reads your components.json and makes each configured registry available to the assistant.

Usage

After connecting the MCP server, try these prompts:

• "Show me the components available in the onchain-ui registry"
• "Install the asset-row component from @onchain-ui"
• "Build a portfolio card using @onchain-ui/asset-row and @onchain-ui/token-price"

The namespace also works with the CLI directly:

npx shadcn add @onchain-ui/asset-row