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Antigravity

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

Antigravity connects to ReUI through your MCP config. Antigravity does not run the browser sign-in that some agents use, so ReUI authenticates with a personal token you paste into the config, then you build UI by chat.

Connect ReUI

Create a ReUI token

Antigravity connects to remote MCP servers with a token you place in the config, so create one first. Open , generate a personal token (it looks like reui_pat_...), and copy it. If you do not have a ReUI account yet, sign up for a free one first, it takes a moment. The free tier works with any token, and a Pro or Ultimate license on the same token unlocks premium blocks, icons, and unlimited requests.

Add the ReUI MCP server

Add ReUI to your Antigravity MCP config. Antigravity uses the serverUrl key for remote servers and reads the token from a headers entry, so include both:

~/.gemini/config/mcp_config.json

Bolt

On This Page

Connect ReUI Create a ReUI token Add the ReUI MCP server Install the ReUI skill Build with ReUI Troubleshooting

{
  "mcpServers": {
    "reui": {
      "serverUrl": "https://mcp.reui.io",
      "headers": {
        "Authorization": "Bearer reui_pat_your_token_here"
      }
    }
  }
}

You can open this file from inside Antigravity: click the ... menu at the top of the agent panel, choose MCP Servers, then Manage MCP Servers, then View raw config. Replace reui_pat_your_token_here with the token you copied, save, and refresh the MCP Servers list.

Install the ReUI skill

Run the one-line installer so Antigravity follows ReUI's build workflow:

Install the ReUI skill

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

This drops a ReUI skill file into your project. With it in place, Antigravity knows the ReUI conventions and reaches for the right registry blocks, components, and icons as it builds.

Build with ReUI

Describe the interface you want in plain language and Antigravity 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.

Troubleshooting

Almost every hiccup is a token or config issue - the fix is to check the Authorization header and refresh the server.

Tools missing, greyed out, or "not connected" - the server did not finish connecting. To fix it, confirm the reui entry has both serverUrl and the headers.Authorization line, save the config, refresh the MCP Servers list, then restart Antigravity.
401 or "authentication required" - the token is missing, mistyped, or revoked. To fix it, generate a fresh token at reui.io/account/mcp and paste it into the Authorization: Bearer header.
Requests hang or the session drops mid-build - long sessions can lose the connection. To fix it, refresh the MCP Servers list and retry your last prompt.
429 "daily limit reached" - you hit the free limit of 100 requests per day. Use a token from a ReUI license for unlimited access, or wait for the next day.

Plan scope

Free = components and examples, capped at 100 requests per day. Pro and Ultimate = premium blocks, icons, and unlimited requests. See pricing for details, or the other agent guides for other agents.

reui.io/account/mcp