# Newsletter CTA block

> Centered newsletter signup CTA with mail-prefixed email input and avatar-stack subscriber proof

Centered newsletter CTA: badge eyebrow, headline, lede, a mail-prefixed email field with Subscribe button, and an overlapping avatar stack with subscriber count. ReUI Badge, shadcn InputGroup, Avatar, Button. Email capture, mailing-list opt-in.

- Type: Pro block
- Category: [CTA](https://web.dev.reui.io/blocks/marketing/cta.md)
- Page: https://web.dev.reui.io/blocks/marketing/cta/cta-1
- MCP: `get_block("cta-1")`
- Built with: Avatar, Badge, Button, Input Group
- Installs with a ReUI Pro or Ultimate license; setup: https://web.dev.reui.io/docs/license-setup

## Best for

A Sunday newsletter signup with a mail icon email field and 5 overlapping subscriber portraits beside a joined count

## Agent notes

- `onSubmit` only calls `preventDefault`, so Subscribe sends nothing; read the `InputGroupInput` value and post it to your mailing list
- The 5 `AvatarImage` portraits are Unsplash stock and the 1,247 joined count is typed text; replace both with real subscriber data

## When not to use

- A first screen where the email field sits beside a product console above the fold: use the [Hero blocks](https://web.dev.reui.io/blocks/marketing/hero.md)
- A card that lists the team email address for visitors to write to: use [Single Email Contact](https://web.dev.reui.io/blocks/marketing/contact/contact-1.md) (`get_block("contact-1")`)

## Install

```bash
npx shadcn@latest add @reui/cta-1
```

## About CTA blocks

### When to use

- A closing get started band with a headline and 1 or 2 actions, some backed by logos, avatars or a rating
- Email capture for a newsletter, a waitlist or release updates, with an inline email field and submit button
- A sales prompt that books a call or opens a contact route rather than a self-serve signup

### When not to use

- The first screen of a page, with the main headline and a product console above the fold: use the [Hero blocks](https://web.dev.reui.io/blocks/marketing/hero.md)
- A compact promo tile with 1 button, sized to sit beside other cards in an app page: use the [Card blocks](https://web.dev.reui.io/blocks/application/card.md)
- A sign in or sign up page with a password, a magic link or social provider buttons: use the [Auth blocks](https://web.dev.reui.io/blocks/application/auth.md)

### Agent notes

- The headline and every action label are written inline in `Cta` in components/cta.tsx, never in a data file; rewrite them there
- No action is wired: every `href` is a placeholder hash and no email form reaches a backend; connect real routes and a submit handler

Every ReUI item has a twin like this one; the index is https://web.dev.reui.io/llms.txt. Agents with the ReUI MCP (https://web.dev.reui.io/docs/mcp) get the same guidance from the getters named above.