# Sign-in Dialog

> Sign-in in a modal: a centred mark and title over full-width Google, GitHub and Apple buttons, then an email path that sends a magic link and turns the dialog into a Check your inbox confirmation without closing. It eases to each new height, keyboard opens land on the first provider, a footer offers sign-up, and it starts fresh each time it opens.

- Slug: `sign-in-dialog`
- Category: [Authentication](https://www.assembli.design/category/authentication.md)
- Type: component
- Tags: sign-in, login, modal, dialog, auth, social-login, magic-link
- npm dependencies: motion, lucide-react
- shadcn/ui dependencies: dialog, @assembli/email-field, @assembli/social-sign-in-buttons
- Added: 2026-10-24
- Live preview: https://www.assembli.design/preview/sign-in-dialog
- Page: https://www.assembli.design/components/sign-in-dialog

## Install

One-time setup (needs a subscription):

1. Add the registry to the project's `components.json`: `{"@assembli":{"url":"https://www.assembli.design/r/{name}.json","headers":{"Authorization":"Bearer ${ASSEMBLI_API_KEY}"}}}` (merge into `"registries"`).
2. Put an API key from https://www.assembli.design/account in `.env.local` as `ASSEMBLI_API_KEY=asm_…`.

Then install with the shadcn CLI (writes `components/sign-in-dialog/sign-in-dialog.tsx` and installs dependencies):

```bash
npx shadcn@latest add @assembli/sign-in-dialog
```

Registry item JSON: https://www.assembli.design/r/sign-in-dialog.json (send `Authorization: Bearer <api key>`)

## Code

> Component source needs an Assembli subscription ($12/month) and an API key sent as `Authorization: Bearer <key>`. To get one without copying anything, POST https://www.assembli.design/api/agent/login (or call the MCP tool connect_account), show the user the link it returns, and poll https://www.assembli.design/api/agent/token for the key. Or subscribe at https://www.assembli.design/pricing and create a key at https://www.assembli.design/account.