# Thinking

> An expandable AI agent thinking trace that streams steps, reasoning, web-search results, or tool calls with a shimmering label and collapsible timeline.

- Author: [theshanelevine](https://21st.dev/@theshanelevine)
- License: no-license
- Tags: AI, Agent, Thinking, Reasoning
- Live preview: https://21st.dev/@theshanelevine/components/thinking

## Install

```bash
npx shadcn@latest add "https://21st.dev/r/theshanelevine/thinking?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/ai.md