# Thought Chain

> An animated step-by-step reasoning display for AI agents, with collapsible steps and done/active/pending status indicators.

- Author: [odysseyui](https://21st.dev/@odysseyui)
- Library: @odysseyui
- License: MIT
- Tags: AI, Reasoning, Collapsible
- npm dependencies: motion, lucide-react
- Live preview: https://21st.dev/@odysseyui/components/components-ai-thought-chain

## Install

```bash
npx shadcn@latest add "https://21st.dev/r/odysseyui/components-ai-thought-chain?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