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OpenCode

PreviousNext

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

Connect OpenCode to ReUI in one step and build UI from the ReUI registry directly in chat.

Connect ReUI

Add the ReUI MCP server

Create or update opencode.json in your project root:

opencode.json
ReplitVS Code

On This Page

Connect ReUIInstall the ReUI skillBuild with ReUIUnlock premium itemsTroubleshooting
{
  "$schema": "https://opencode.ai/config.json",
  "mcp": {
    "reui": {
      "type": "remote",
      "url": "https://mcp.reui.io",
      "enabled": true
    }
  }
}

If OpenCode does not prompt, start authentication with opencode mcp auth reui.

Sign in with ReUI

The first time OpenCode calls a ReUI tool, your browser opens a "Sign in with ReUI" prompt. Authorize it and you are connected. If you do not have a ReUI account yet, a free one is created for you right in that flow, so there is no separate signup step.

For headless or CI setups where no browser is available, create a personal token at reui.io/account/mcp and pass it as an Authorization: Bearer header:

opencode.json
{
  "$schema": "https://opencode.ai/config.json",
  "mcp": {
    "reui": {
      "type": "remote",
      "url": "https://mcp.reui.io",
      "enabled": true,
      "headers": {
        "Authorization": "Bearer reui_pat_your_token_here"
      }
    }
  }
}

Paste the real token here, or use OpenCode's own environment syntax, Bearer {env:REUI_LICENSE_KEY}, which OpenCode resolves before the request goes out. What never works is the ${REUI_LICENSE_KEY} form from components.json: that one is expanded by the shadcn CLI, not by OpenCode, so it reaches the server as literal text and the request fails with a 401.

Install the ReUI skill

OpenCode runs locally, so add the ReUI skill with a single command:

Terminal
curl -fsSL https://mcp.reui.io/install | node -

This drops a ReUI skill file into your project so OpenCode follows ReUI's build workflow (discovering components, pulling source, and assembling blocks the way ReUI intends) instead of guessing.

Build with ReUI

Describe the interface you want in plain language and OpenCode pulls the right ReUI components, examples, and blocks from the registry, then wires them into your project.

Prompt
Use ReUI to scaffold an admin app - the app-shell with a collapsible sidebar and top bar, and a dashboard page with stat cards and a chart.
Prompt
Add a data-grid of orders with sorting, column filters, pagination, and row selection, wired to my /api/orders endpoint.
Prompt
Build a multi-step "create project" wizard with the ReUI stepper and form components, with validation on each step.
Prompt
Add a kanban board for support tickets with drag and drop, grouped by status, and a filters bar above it.

Unlock premium items

Free items (the 17 components and every c-* example) install with no license. To let OpenCode install premium blocks, icons, and templates too, grab a Pro or Ultimate license - one license unlocks the whole premium registry and removes the daily MCP request limit. Then add your key to the project - two quick steps:

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 ${REUI_LICENSE_KEY} reference belongs in components.json only, because the shadcn CLI expands it from your environment. An MCP client config never expands variables, so the MCP server needs the real token pasted in.

That is it - OpenCode can now install any premium item the MCP returns, and free items keep working through the same config. See License Setup for the full guide, or compare plans on the Pricing page.

Troubleshooting

Almost every hiccup is a stale sign-in - the fix is to reconnect and authorize again.

  • Tools missing, greyed out, or "not connected" - the server did not finish connecting. To fix it, run opencode mcp auth reui, then restart OpenCode.
  • 401 or "authentication required" - your ReUI session expired. To fix it, run opencode mcp auth reui to sign in again.
  • Requests hang or the session drops mid-build - long sessions can lose the connection. To fix it, run opencode mcp auth reui and retry your last prompt.
  • 429 "daily limit reached" - you hit the free limit of 100 requests per day. Sign in with your ReUI license for unlimited access, or wait for the next day.
Plan scope

Free covers components and examples at 100 requests/day; a Pro or Ultimate license unlocks premium blocks, icons, and unlimited requests (add the @reui registry via License Setup to install them).