Registry

The mcpcn registry distributes MCP App components in the shadcn registry format. Register its namespace once in components.json, then install items by name with the CLI.

Setup

Add a registries entry for mcpcn:

Copy{
  "registries": {
    "@mcpcn": "https://mcpcn.dev/r/{name}.json"
  }
}

The namespace can be changed, but it must match the name passed to shadcn add.

Usage

Install a component by its registry name:

bunnpmpnpmyarn
$ pnpm dlx shadcn@latest add @mcpcn/quick-reply
Copy

Install another component the same way:

bunnpmpnpmyarn
$ pnpm dlx shadcn@latest add @mcpcn/event-card
Copy

The CLI copies the component source and resolves its npm packages, shadcn/ui primitives, and shared mcpcn registry dependencies.

You can also install a component directly from its JSON URL without configuring a registry alias:

bunnpmpnpmyarn
$ pnpm dlx shadcn@latest add https://mcpcn.dev/r/quick-reply.json
Copy

The complete machine-readable registry is available at /r/registry.json.