# Tool Call

> A collapsible row that displays an AI agent's tool call, showing its name, input parameters, and output or error in a quiet expandable panel.

- Author: [Alwurts](https://21st.dev/@Alwurts)
- Library: [simple-ai](https://21st.dev/@Alwurts/library/simple-ai)
- License: MIT
- Tags: Chat, AI, Agent, Collapsible, Tool Call
- npm dependencies: ai, lucide-react
- Live preview: https://21st.dev/@Alwurts/components/tool

## Install

```bash
npx shadcn@latest add "https://21st.dev/r/Alwurts/tool?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