> ## Documentation Index
> Fetch the complete documentation index at: https://exa.ai/docs/llms.txt
> Use this file to discover all available pages before exploring further.

> ## Agent Instructions
> The Exa API is served at https://api.exa.ai. Authenticate with `Authorization: Bearer $EXA_API_KEY` (or `x-api-key: $EXA_API_KEY`); create keys at https://dashboard.exa.ai/api-keys?utm_source=docs&utm_medium=docs&utm_campaign=markdown_instructions. Every way an agent can get access to Exa is described at https://exa.ai/auth.md.
> Prefer the official SDKs, `exa-py` (`pip install exa-py`) and `exa-js` (`npm install exa-js`); both read `EXA_API_KEY` from the environment.
> Tool-using agents can call Exa without writing code through the hosted MCP server at https://mcp.exa.ai/mcp, or install the Exa agent skill with `npx skills add exa-labs/agent-skills` (skill file: https://exa.ai/docs/skill.md).
> The OpenAPI specs at https://exa.ai/docs/exa-spec.yaml and https://exa.ai/docs/team-management-spec.yaml are the source of truth for request and response schemas.

# Grok Build

> Use Exa web search in Grok Build. Install the Exa plugin from the Grok Build marketplace and sign in with your Exa account.

Exa is available as a plugin on the [Grok Build](https://docs.x.ai/build/overview) marketplace. It gives Grok real-time web search, page reading, and a deep research skill.

## Installation

**1. Install Grok Build**

Install the Grok CLI (see the [Grok Build docs](https://docs.x.ai/build/overview) for details):

```bash theme={null}
curl -fsSL https://x.ai/cli/install.sh | bash
```

Then sign in to your xAI account:

```bash theme={null}
grok login
```

**2. Open the marketplace**

Start Grok Build by running `grok`, then open the marketplace:

```text theme={null}
/marketplace
```

**3. Install the Exa plugin**

Find **exa** in the list and press `i` to install it.

**4. Sign in to Exa**

Open the MCP servers tab with `/mcp`, select **exa**, and press `i` to sign in. Your browser opens the Exa sign-in page. New accounts get free credits at signup.

Once exa shows **ready**, ask Grok anything that needs the web.

## What you get

* **web\_search\_exa**: real-time web search. Supports natural language queries and category filters like news, companies, people, research papers, and GitHub.
* **web\_fetch\_exa**: reads any URL and returns the page content as clean markdown.
* **exa-search skill**: a deep research skill. Ask Grok for a deep dive on a topic and it runs multiple searches, reads the best sources, and answers with citations.

## Example prompts

* "Search for recent news about xAI"
* "Read [https://exa.ai](https://exa.ai) and summarize it"
* "Do a deep dive on open source inference engines"