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Scrape single pages, crawl entire sites, and map URLs from your Node.js application. The SDK handles pagination, retries, and async job polling so you can focus on working with the returned data.

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Installation

Install the SDK with npm:
Node
# npm install @mendable/firecrawl-js

import Firecrawl from '@mendable/firecrawl-js';

const firecrawl = new Firecrawl({ apiKey: "fc-YOUR-API-KEY" });

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Usage

  1. Get an API key from firecrawl.dev
  2. Set the API key as an environment variable named FIRECRAWL_API_KEY or pass it as a parameter to the FirecrawlApp class.
Here’s an example of how to use the SDK with error handling:
Node
import Firecrawl from '@mendable/firecrawl-js';

const firecrawl = new Firecrawl({apiKey: "fc-YOUR_API_KEY"});

// Scrape a website
const scrapeResponse = await firecrawl.scrape('https://firecrawl.dev', {
  formats: ['markdown', 'html'],
});

console.log(scrapeResponse)

// Crawl a website
const crawlResponse = await firecrawl.crawl('https://firecrawl.dev', {
  limit: 100,
  scrapeOptions: {
    formats: ['markdown', 'html'],
  }
});

console.log(crawlResponse)

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Scraping a URL

Scrape a single URL and get back structured page data with the scrape method.
Node
// Scrape a website:
const scrapeResult = await firecrawl.scrape('firecrawl.dev', { formats: ['markdown', 'html'] });

console.log(scrapeResult)

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Crawling a Website

Crawl an entire website starting from a single URL with the crawl method. You can set a page limit, restrict to specific domains, and choose output formats. See Pagination for auto and manual pagination.
Node
const job = await firecrawl.crawl('https://docs.firecrawl.dev', { limit: 5, pollInterval: 1, timeout: 120 });
console.log(job.status);

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Sitemap-Only Crawl

Use sitemap: "only" to crawl sitemap URLs only (the start URL is always included, and HTML link discovery is skipped).
Node
const job = await firecrawl.crawl('https://docs.firecrawl.dev', {
  sitemap: 'only',
  limit: 25,
});
console.log(job.status, job.data.length);

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Start a Crawl

Start a crawl without waiting for it to finish using startCrawl. The method returns a job ID you can poll later. Use crawl instead when you want to block until completion. See Pagination for paging behavior and limits.
Node
const { id } = await firecrawl.startCrawl('https://docs.firecrawl.dev', { limit: 10 });
console.log(id);

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Checking Crawl Status

Check whether a crawl is still running, completed, or failed with the checkCrawlStatus method. Pass the job ID returned by startCrawl.
Node
const status = await firecrawl.getCrawlStatus("<crawl-id>");
console.log(status);

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Cancelling a Crawl

Cancel a running crawl with the cancelCrawl method. Pass the job ID returned by startCrawl.
Node
const ok = await firecrawl.cancelCrawl("<crawl-id>");
console.log("Cancelled:", ok);

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Mapping a Website

Discover all URLs on a website with the map method. Pass a starting URL and get back a list of discovered pages.
Node
const res = await firecrawl.map('https://firecrawl.dev', { limit: 10 });
console.log(res.links);

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Crawling a Website with WebSockets

Stream crawl results in real time with the crawlUrlAndWatch method. You receive each page as it is crawled instead of waiting for the entire job to finish.
Node
import Firecrawl from '@mendable/firecrawl-js';

const firecrawl = new Firecrawl({ apiKey: 'fc-YOUR-API-KEY' });

// Start a crawl and then watch it
const { id } = await firecrawl.startCrawl('https://mendable.ai', {
  excludePaths: ['blog/*'],
  limit: 5,
});

const watcher = firecrawl.watcher(id, { kind: 'crawl', pollInterval: 2, timeout: 120 });

watcher.on('document', (doc) => {
  console.log('DOC', doc);
});

watcher.on('error', (err) => {
  console.error('ERR', err?.error || err);
});

watcher.on('done', (state) => {
  console.log('DONE', state.status);
});

// Begin watching (WS with HTTP fallback)
await watcher.start();

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Pagination

Firecrawl endpoints for crawl and batch return a next URL when more data is available. The Node SDK auto-paginates by default and aggregates all documents; in that case next will be null. You can disable auto-pagination or set limits.

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Crawl

Use the waiter method crawl for the simplest experience, or start a job and page manually.
Simple crawl (auto-pagination, default)
Manual crawl with pagination control (single page)
  • Start a job, then fetch one page at a time with autoPaginate: false.
Node
const crawlStart = await firecrawl.startCrawl('https://docs.firecrawl.dev', { limit: 5 });
const crawlJobId = crawlStart.id;

const crawlSingle = await firecrawl.getCrawlStatus(crawlJobId, { autoPaginate: false });
console.log('crawl single page:', crawlSingle.status, 'docs:', crawlSingle.data.length, 'next:', crawlSingle.next);
Manual crawl with limits (auto-pagination + early stop)
  • Keep auto-pagination on but stop early with maxPages, maxResults, or maxWaitTime.
Node
const crawlLimited = await firecrawl.getCrawlStatus(crawlJobId, {
  autoPaginate: true,
  maxPages: 2,
  maxResults: 50,
  maxWaitTime: 15,
});
console.log('crawl limited:', crawlLimited.status, 'docs:', crawlLimited.data.length, 'next:', crawlLimited.next);

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Batch Scrape

Use the waiter method batchScrape, or start a job and page manually.
Simple batch scrape (auto-pagination, default)
Manual batch scrape with pagination control (single page)
  • Start a job, then fetch one page at a time with autoPaginate: false.
Node
const batchStart = await firecrawl.startBatchScrape([
  'https://docs.firecrawl.dev',
  'https://firecrawl.dev',
], { options: { formats: ['markdown'] } });
const batchJobId = batchStart.id;

const batchSingle = await firecrawl.getBatchScrapeStatus(batchJobId, { autoPaginate: false });
console.log('batch single page:', batchSingle.status, 'docs:', batchSingle.data.length, 'next:', batchSingle.next);
Manual batch scrape with limits (auto-pagination + early stop)
  • Keep auto-pagination on but stop early with maxPages, maxResults, or maxWaitTime.
Node
const batchLimited = await firecrawl.getBatchScrapeStatus(batchJobId, {
  autoPaginate: true,
  maxPages: 2,
  maxResults: 100,
  maxWaitTime: 20,
});
console.log('batch limited:', batchLimited.status, 'docs:', batchLimited.data.length, 'next:', batchLimited.next);

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Browser

Launch cloud browser sessions and execute code remotely.

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Create a Session

Node
import Firecrawl from '@mendable/firecrawl-js';

const firecrawl = new Firecrawl({ apiKey: "fc-YOUR-API-KEY" });

const session = await firecrawl.browser({ ttl: 600 });
console.log(session.id);          // session ID
console.log(session.cdpUrl);      // wss://cdp-proxy.firecrawl.dev/cdp/...
console.log(session.liveViewUrl); // https://liveview.firecrawl.dev/...

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Execute Code

Node
const result = await firecrawl.browserExecute(session.id, {
  code: 'await page.goto("https://news.ycombinator.com")\ntitle = await page.title()\nprint(title)',
});
console.log(result.result); // "Hacker News"
Execute JavaScript instead of Python:
Node
const result = await firecrawl.browserExecute(session.id, {
  code: 'await page.goto("https://example.com"); const t = await page.title(); console.log(t);',
  language: "node",
});
Execute bash with agent-browser:
Node
const result = await firecrawl.browserExecute(session.id, {
  code: "agent-browser open https://example.com && agent-browser snapshot",
  language: "bash",
});

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Profiles

Save and reuse browser state (cookies, localStorage, etc.) across sessions:
Node
const session = await firecrawl.browser({
  ttl: 600,
  profile: {
    name: "my-profile",
    saveChanges: true,
  },
});

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Connect via CDP

For full Playwright control, connect directly using the CDP URL:
Node
import { chromium } from "playwright";

const browser = await chromium.connectOverCDP(session.cdpUrl);
const context = browser.contexts()[0];
const page = context.pages()[0] || await context.newPage();

await page.goto("https://example.com");
console.log(await page.title());

await browser.close();

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List & Close Sessions

Node
// List active sessions
const { sessions } = await firecrawl.listBrowsers({ status: "active" });
for (const s of sessions) {
  console.log(s.id, s.status, s.createdAt);
}

// Close a session
await firecrawl.deleteBrowser(session.id);

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Scrape-Bound Interactive Session

Use a scrape job ID to keep interacting with the replayed page context from that scrape:
  • interact(jobId, {...}) runs code in the scrape-bound browser session.
  • First interact call auto-initializes the session from the scrape context.
  • Additional interact calls on the same job ID reuse that live browser state.
  • stopInteraction(jobId) stops the interactive session when you are done.
Node
const doc = await firecrawl.scrape("https://example.com", {
  actions: [{ type: "click", selector: "a[href='/pricing']" }],
});

const scrapeJobId = doc.metadata?.scrapeId;
if (!scrapeJobId) throw new Error("Missing scrape job id");

const run = await firecrawl.interact(scrapeJobId, {
  code: "console.log(await page.url())",
  language: "node",
  timeout: 60,
});
console.log(run.stdout);

await firecrawl.stopInteraction(scrapeJobId);

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Error Handling

The SDK throws descriptive exceptions for any errors returned by the Firecrawl API. Wrap calls in try/catch blocks as shown in the examples above.
Are you an AI agent that needs a Firecrawl API key? See firecrawl.dev/agent-onboarding/SKILL.md for automated onboarding instructions.