# Signup Form · Pro

A sign-up card: the form shakes on a bad email, the password gets a strength meter and a checklist that ticks off as you type, and the button ends in a success state.

This is a Charcoal UI Pro component. Its source and examples are available with a Pro seat: https://charcoalui.com/pricing

## With a Pro seat

1. Add the registry to components.json:

```json
{
  "registries": {
    "@charcoal": {
      "url": "https://charcoalui.com/r/{name}.json",
      "headers": {
        "Authorization": "Bearer ${CHARCOAL_LICENSE_KEY}"
      }
    }
  }
}
```

2. Copy your licence key from https://charcoalui.com/dashboard and put it in .env.local as CHARCOAL_LICENSE_KEY, then:

```bash
npx shadcn@latest add @charcoal/signup-form
```

To read Pro source through this MCP server, reconnect it with the header "Authorization: Bearer <licence key>".

## API — Signup Form
| Prop | Type | Default | Notes |
| --- | --- | --- | --- |
| `title / subtitle` | `string` | — |  |
| `onSubmit` | `({ email, password }) => void \| Promise<void>` | — | Throw to show an error. |
| `onSso` | `() => void` | — | Adds a single sign-on button. |
| `className` | `string` | — |  |

See it live: https://charcoalui.com/docs/components/signup-form