# Mention Input

> A textarea that pops up a caret-anchored autocomplete list when the user types an @ (or other trigger character), highlights confirmed @mentions as chips inside the text, and supports async search for suggestions.

- Author: [Mohammad Shehadeh](https://21st.dev/@mohammadshehadeh)
- Library: [Hirael](https://21st.dev/@mohammadshehadeh/library/hirael)
- License: MIT
- Tags: Textarea, Autocomplete, Combobox, Chat Input
- Live preview: https://21st.dev/@mohammadshehadeh/components/mention-input

## Install

```bash
npx shadcn@latest add "https://21st.dev/r/mohammadshehadeh/mention-input?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/textarea.md