The High-Performance TypeScript Web Scraper for LLM Agents.
AgentCrawl is built to be the "eyes" of your AI Agents. It fetches web content, strips away the noise (ads, scripts, styles), and returns clean, token-optimized Markdown ready for your LLM context window.
It features a Hybrid Engine that starts with extremely fast static scraping and automatically falls back to a headless browser (Playwright) only when necessary for dynamic content or authentication.
- 🚀 Hybrid Engine: Instant static fetch by default, auto-switch to Headless Browser for dynamic sites.
- ⚡ Token Optimized: Returns clean Markdown, stripping 80-90% of tokens (ads, navs, footers).
- 🧠 Agent-First: Detects Main Content, removes boilerplate, and extracts semantic structure.
- 🔌 Plug-and-Play: Simple API designed for agent runtimes (scrape + crawl).
- 🛡️ Production Ready: Built-in caching, retry logic, user-agent rotation, and resource blocking.
- 🕵️ Stealth Mode: Optional best-effort browser hardening to reduce common bot-detection fingerprints.
- ✅ Predictable Errors: Non-2xx HTTP responses are surfaced as errors instead of silently parsed as success.
- 🇹 Type-Safe: 100% TypeScript with Zod validation.
npm install agent-crawl
# OR
bun add agent-crawlAgentCrawl ships with a CLI for quick scraping and crawling from the terminal.
# Install globally
npm install -g agent-crawl
# Or use directly with npx
npx agent-crawl scrape https://example.comagent-crawl scrape https://example.comagent-crawl scrape https://example.com --output jsonagent-crawl scrape https://example.com --mode browser --stealth
agent-crawl scrape https://example.com --mode browser --wait-for ".content" --js "document.querySelector('.more').click()"agent-crawl scrape https://example.com --output json --extract-css '{"title":"h1","price":".price"}'
agent-crawl scrape https://example.com --output json --extract-regex '{"email":"[\\w.+-]+@[\\w-]+\\.[\\w.]+"}'agent-crawl crawl https://example.com --depth 2 --pages 50 --strategy dfs
agent-crawl crawl https://example.com --robots --sitemap --include "/blog/*"
agent-crawl crawl https://example.com --strategy bestfirst --keywords "pricing,plans,features"# Auto-scroll for infinite/lazy content
agent-crawl scrape https://example.com --mode browser --scroll --max-scrolls 20
# Screenshot and PDF capture
agent-crawl scrape https://example.com --mode browser --screenshot --pdf
# Custom headers and cookies
agent-crawl scrape https://example.com -H "Authorization: Bearer tok123" --cookie "session=abc"# Table extraction and footnote-style citations
agent-crawl scrape https://example.com --tables --citations
# Pipe to an LLM
agent-crawl scrape https://docs.example.com | llm "summarize this page"Run agent-crawl --help for the full list of options.
import{AgentCrawl}from'agent-crawl';// Simplest usage - returns clean propertiesconstpage=awaitAgentCrawl.scrape("https://example.com");console.log(page.title);// "Example Domain"console.log(page.content);// "Example Domain\n\nThis domain is for use..."console.log(page.links);// Array of same-origin links found on the pageconstpage=awaitAgentCrawl.scrape("https://news.ycombinator.com",{mode: "hybrid",// "static" | "browser" | "hybrid" (default)extractMainContent: true,// Extract only the article bodyoptimizeTokens: true,// Compress excessive whitespace (default: true)stealth: true,// Enable browser stealth hardening when browser is usedstealthLevel: "balanced",// "basic" | "balanced" (default: "balanced")waitFor: ".main-content",// CSS selector to wait for (browser mode)});Crawl an entire website with configurable depth, page limits, and concurrency:
constresult=awaitAgentCrawl.crawl("https://docs.example.com",{maxDepth: 2,// How many link-hops from start URL (default: 1)maxPages: 20,// Stop after N pages (default: 10)concurrency: 4,// Parallel requests (default: 2)extractMainContent: true,});console.log(`Crawled ${result.totalPages} pages`);console.log(`Max depth reached: ${result.maxDepthReached}`);result.pages.forEach(page=>{console.log(`- ${page.title}: ${page.url}`);});| Option | Type | Default | Description |
|---|---|---|---|
mode | 'hybrid' | 'static' | 'browser' | 'hybrid' | Strategy to use. hybrid tries static first, then browser. |
extractMainContent | boolean | false | Extract only the main article body using Readability-like algorithm. |
optimizeTokens | boolean | true | Remove extra whitespace and empty links for token efficiency. |
stealth | boolean | false | Apply best-effort browser stealth hardening (browser mode only). |
stealthLevel | 'basic' | 'balanced' | 'balanced' | Stealth profile strength when stealth is enabled. |
waitFor | string | undefined | CSS selector to wait for (browser mode only). |
maxResponseBytes | number | undefined | Best-effort cap for static fetch response size in bytes. |
httpCache | boolean | { dir?, ttlMs?, maxEntries? } | undefined | Opt-in disk HTTP cache for static fetch (ETag/Last-Modified). |
cache | boolean | { dir?, ttlMs?, maxEntries? } | undefined | Opt-in disk cache for processed scrape results (ScrapedPage). |
chunking | boolean | { enabled?, maxTokens?, overlapTokens? } | undefined | Opt-in token-aware chunking (page.chunks) with citation anchors. |
constpage=awaitAgentCrawl.scrape("https://example.com",{mode: "static",httpCache: {dir: ".cache/agent-crawl/http",ttlMs: 60_000,maxEntries: 1000},cache: {dir: ".cache/agent-crawl",ttlMs: 5*60_000,maxEntries: 1000},});constpage=awaitAgentCrawl.scrape("https://example.com",{chunking: {enabled: true,maxTokens: 1200,overlapTokens: 100},});// page.chunks: [{ id, text, approxTokens, headingPath, citation: { url, anchor }}, ...]Crawl options include all scrape options plus:
| Option | Type | Default | Description |
|---|---|---|---|
maxDepth | number | 1 | Maximum link depth to crawl from the start URL. |
maxPages | number | 10 | Maximum number of pages to crawl. |
concurrency | number | 2 | Number of pages to fetch in parallel. |
perHostConcurrency | number | concurrency | Maximum concurrent requests per host. |
minDelayMs | number | 0 | Minimum delay between requests to the same host. |
includePatterns | string[] | [] | Only crawl URLs containing any of these substrings. |
excludePatterns | string[] | [] | Do not crawl URLs containing any of these substrings. |
robots | boolean | { enabled?, userAgent?, respectCrawlDelay? } | undefined | Opt-in robots.txt compliance (Disallow/Allow + Crawl-delay). |
sitemap | boolean | { enabled?, maxUrls? } | undefined | Opt-in sitemap seeding from /sitemap.xml. |
crawlState | boolean | { enabled?, dir?, id?, resume?, flushEvery?, persistPages? } | undefined | Opt-in resumable crawl state persisted to disk. |
constresult=awaitAgentCrawl.crawl("https://docs.example.com",{maxDepth: 2,maxPages: 100,concurrency: 6,perHostConcurrency: 2,minDelayMs: 250,robots: {enabled: true,userAgent: "agent-crawl",respectCrawlDelay: true},sitemap: {enabled: true,maxUrls: 1000},});constresult=awaitAgentCrawl.crawl("https://docs.example.com",{maxDepth: 3,maxPages: 500,concurrency: 6,crawlState: {enabled: true,dir: ".cache/agent-crawl/state",id: "docs-example",resume: true,flushEvery: 5,persistPages: true,},});{
url: string;// The final URL (after redirects)
content: string;// Clean markdown content
title?: string;// Page title
links?: string[];// Same-origin links found on the page
chunks?: Array<{// Present only when chunking is enabledid: string;text: string;approxTokens: number;headingPath: string[];citation: {url: string;anchor?: string};}>;
metadata?: {
status: number;// HTTP status code
contentLength: number;
error?: string;// Populated when scrape fails
structured?: {// Structured metadata from HTML (when present)canonicalUrl?: string;
openGraph?: Record<string,string>;
twitter?: Record<string,string>;
jsonLd?: unknown[];};// ... other headers}}scrape() returns an empty content plus metadata.error for non-2xx responses or fetch/browser failures.
When browser rendering is used, metadata also includes:
stealthApplied: booleanstealthLevel?: "basic" | "balanced"(when stealth is enabled)
- Stealth is opt-in via
stealth: true. - It is applied only for browser rendering (
mode: "browser"and hybrid browser fallback). - It hardens common automation fingerprints (
navigator.webdriver, language/plugins/platform hints, permission query behavior, and browser headers/profile). - It is best-effort: some anti-bot systems may still block requests.
{
pages: ScrapedPage[];// Array of all scraped pages
totalPages: number;// Total number of pages crawled
maxDepthReached: number;// Deepest level reached
errors: Array<{// Any errors encounteredurl: string;error: string;}>;}MIT © silupanda