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Lovable

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

Lovable connects to ReUI through a single chat connector, so you can build UI from the ReUI registry right inside your chat.

Connect ReUI

Add the ReUI MCP server

In Lovable, open Connectors, go to Chat connectors, then click New MCP server (a remote MCP server that extends the agent's capabilities). Fill in the form:

New MCP server
Server name:    reui
Server URL:     https://mcp.reui.io
Authentication: OAuth (default)

Leave Authentication on OAuth (default) - it authorizes in the next step. Then click Add & authorize.

For CI or a headless setup, pick Bearer token or API key instead, create a personal token at , and paste the token value on its own - just reui_pat_..., with no Authorization: prefix and no ${...} environment placeholder, since the field is sent exactly as written.

v0Replit

On This Page

Connect ReUIThe ReUI skillBuild with ReUIUnlock premium itemsTroubleshooting

Sign in with ReUI

Add & authorize opens a "Sign in with ReUI" window. Approve it, then click Add server to finish. If you do not have a ReUI account yet, a free one is created for you in that same flow, so there is nothing to set up ahead of time.

The ReUI skill

You do not install anything - the skill rides on the MCP from mcp.reui.io, no separate registry to add. Once the connector is authorized, the Lovable Agent gets ReUI's tools, and it can call get_agent_skill to load the full ReUI workflow (the reuse-first rule and the discover, install, adapt order) as a document. If a build ever drifts off-pattern, tell it to "follow the ReUI skill" to reload that workflow.

Build with ReUI

Describe the interface you want in plain language and Lovable 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. Since Lovable builds on the shadcn/ui model (Vite + React), connect GitHub first and apply the steps below in the synced repo, where the Agent runs the CLI. To let Lovable 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 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 the connector form: the ReUI MCP server signs in with OAuth, or takes your real reui_pat_... token pasted in.

That is it - Lovable 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, open Connectors, remove and re-add the reui server, and authorize again, then restart Lovable.
  • 401 or "authentication required" - your ReUI session expired. To fix it, open Connectors, remove and re-add the reui server, and authorize again to sign in again.
  • Requests hang or the session drops mid-build - long sessions can lose the connection. To fix it, open Connectors, remove and re-add the reui server, and authorize again 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.

reui.io/account/mcp