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

# Mastra

> Wire Firecrawl into Mastra tools so your agents and workflows can search and scrape live web data.

## Prerequisites

* Node.js 22.13+
* A Firecrawl API key — [get one free](https://www.firecrawl.dev/app/api-keys)
* An API key from a supported [Mastra model provider](https://mastra.ai/models)
* An existing Mastra project — follow the [Mastra quickstart](https://mastra.ai/guides/getting-started/quickstart) to set one up

## Install the SDK

```bash theme={null}
npm install @mendable/firecrawl-js
```

## Set your API key

Add your API key to `.env`:

```bash theme={null}
FIRECRAWL_API_KEY=fc-YOUR-API-KEY
```

## Build the Firecrawl tools

Create `src/mastra/tools/firecrawl.ts` to expose search and scrape as Mastra tools:

```typescript theme={null}
import Firecrawl from "@mendable/firecrawl-js";
import { createTool } from "@mastra/core/tools";
import { z } from "zod";

const firecrawl = new Firecrawl({ apiKey: process.env.FIRECRAWL_API_KEY! });

export const firecrawlSearch = createTool({
  id: "firecrawl-search",
  description: "Search the web and return top results.",
  inputSchema: z.object({ query: z.string().min(1) }),
  outputSchema: z.object({
    results: z.array(
      z.object({
        title: z.string().nullable(),
        url: z.string(),
      }),
    ),
  }),
  execute: async ({ query }) => {
    const results = await firecrawl.search(query, { limit: 3 });
    return {
      results: (results.web ?? []).map((item) => ({
        title: item.title ?? null,
        url: item.url,
      })),
    };
  },
});

export const firecrawlScrape = createTool({
  id: "firecrawl-scrape",
  description: "Scrape a URL and return markdown content.",
  inputSchema: z.object({ url: z.string().url() }),
  outputSchema: z.object({ markdown: z.string() }),
  execute: async ({ url }) => {
    const result = await firecrawl.scrape(url, {
      formats: ["markdown"],
      onlyMainContent: true,
    });
    return { markdown: result.markdown ?? "" };
  },
});
```

## Create the agent

Create `src/mastra/agents/web-agent.ts` and give it the Firecrawl tools:

```typescript theme={null}
import { Agent } from "@mastra/core/agent";
import { firecrawlSearch, firecrawlScrape } from "../tools/firecrawl";

export const webAgent = new Agent({
  id: "web-agent",
  name: "Web Agent",
  instructions:
    "Use Firecrawl tools to search and scrape web pages, then summarize the results.",
  model: "openai/gpt-5.4",
  tools: { firecrawlSearch, firecrawlScrape },
});
```

## Register the agent

Register the agent on your Mastra instance in `src/mastra/index.ts`:

```typescript theme={null}
import { Mastra } from "@mastra/core";
import { webAgent } from "./agents/web-agent";

export const mastra = new Mastra({
  agents: { webAgent },
});
```

## Test in Studio

Run the dev server and open [Mastra Studio](https://mastra.ai/docs/studio/overview):

```bash theme={null}
mastra dev
```

Open the **Web Agent** and try prompts like:

* "Find the latest Firecrawl changelog and summarize the last release."
* "Search for Firecrawl pricing and extract the plan tiers."

## Self-hosted Firecrawl

If you run Firecrawl locally, set `FIRECRAWL_API_URL` and pass `apiUrl` to the client:

```typescript theme={null}
const firecrawl = new Firecrawl({
  apiKey: process.env.FIRECRAWL_API_KEY!,
  apiUrl: process.env.FIRECRAWL_API_URL,
});
```

## Next steps

<CardGroup cols={2}>
  <Card title="Scrape docs" icon="file-lines" href="/features/scrape">
    All scrape options including formats, actions, and proxies
  </Card>

  <Card title="Search docs" icon="magnifying-glass" href="/features/search">
    Search the web and get full page content
  </Card>

  <Card title="Agent docs" icon="robot" href="/features/agent">
    Let an agent drive Firecrawl end to end
  </Card>

  <Card title="Node SDK reference" icon="node" href="/sdks/node">
    Full SDK reference with crawl, map, batch scrape, and more
  </Card>
</CardGroup>