# Attachment Composer Tray

> A chat message composer with a textarea, a scrolling row of removable file-attachment chips above it, and attach/send buttons, for AI chat or support-ticket style inputs.

- Author: [Sean Hello](https://21st.dev/@sean0205)
- Library: [ReUI](https://21st.dev/@sean0205/library/reui)
- License: MIT
- Tags: Chat, Attachment, File Upload, Input Group, Composer
- npm dependencies: lucide-react
- Live preview: https://21st.dev/@sean0205/components/attachment-composer-tray

## Install

```bash
npx shadcn@latest add "https://21st.dev/r/sean0205/attachment-composer-tray?api_key=$API_KEY_21ST"
```

Requires a 21st API key (generate one at https://21st.dev/mcp) passed as `API_KEY_21ST`. Free accounts get a limited number of installs per day; unlimited on a paid plan — see https://21st.dev/pricing.

Full component directory: https://21st.dev/llms.txt · More like this: https://21st.dev/community/components/s/chat.md