Grok

Connect the ReUI MCP server to Grok CLI and build UI from the ReUI registry by chat.

Grok CLI connects to the ReUI registry in one step, so you can build UI from ReUI components, examples, and blocks right in your terminal.

Connect ReUI

Add the ReUI server

Start Grok in your project, then open the MCP tab with /mcps and add a remote server:

Connector settings

Name: reui
URL: https://mcp.reui.io
Transport: HTTP (Streamable HTTP)

The first time Grok CLI calls a ReUI tool, your browser opens a "Sign in with ReUI" prompt to authorize the connection. Approve it and you are set. If you do not have a ReUI account yet, a free one is created right there in the same flow, so there is nothing to set up in advance.

Install the ReUI skill

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Connect ReUI Add the ReUI server Sign in with ReUI Install the ReUI skill Troubleshooting Build with ReUI Unlock premium items

Add your license key

Copy your key from Account → Licenses into .env.local at the project root:

.env.local

REUI_LICENSE_KEY=your-license-key-here

Add the @reui registry to components.json

components.json

{
  "registries": {
    "@reui": {
      "url": "https://reui.io/r/{style}/{name}.json",
      "headers": {
        "Authorization": "Bearer ${REUI_LICENSE_KEY}"
      }
    }
  }
}

The shadcn CLI expands ${REUI_LICENSE_KEY} from .env.local, so leave it as a variable here. MCP client configs do not expand variables, so never copy this Authorization line into a Grok MCP server entry, which needs the real reui_pat_... token pasted in.