# Web Search

The web search feature gives large language models internet retrieval capability for recent information, which can improve response accuracy and reduce hallucinations to some extent.

AstrBot's built-in web search functionality relies on the large language model's `function calling` capability. If you're not familiar with function calling, please refer to: [Function Calling](/en/use/function-calling.html).

When using a large language model that supports function calling with the web search feature enabled, you can try saying:

- `Help me search for xxx`
- `Help me summarize this link: https://soulter.top`
- `Look up xxx`
- `Recent xxxx`

And other prompts with search intent to trigger the model to invoke the search tool.

AstrBot currently supports 6 web search providers: `Tavily`, `BoCha`, `Baidu AI Search`, `Brave`, `Firecrawl`, and `Exa`.

![image](https://files.astrbot.app/docs/source/images/websearch/image.png)

Go to `Configuration`, scroll down to find Web Search, where you can select `Tavily`, `BoCha`, `Baidu AI Search`, `Brave`, `Firecrawl`, or `Exa`.

### Tavily

Go to [Tavily](https://app.tavily.com/home) to get an API Key, then fill it in the corresponding configuration item.

### BoCha

Get an API Key from the BoCha platform, then fill it in the corresponding configuration item.

### Baidu AI Search

Get an API Key from Baidu Qianfan APP Builder, then fill it in the corresponding configuration item.

### Brave

Get an API Key from Brave Search, then fill it in the corresponding configuration item.

### Firecrawl

Go to [Firecrawl](https://firecrawl.dev) to get an API Key, then fill it in the corresponding configuration item.

### Exa

Go to [Exa](https://dashboard.exa.ai) to get an API Key, then fill it in the corresponding configuration item. Exa is an AI-native search engine that supports keyword and semantic search with category filters, domain restrictions, and date ranges.

If you use Tavily as your web search source, you will get a better experience optimization on AstrBot ChatUI, including citation source display and more:

![](https://files.astrbot.app/docs/source/images/websearch/image1.png)