The Web Crawler for AI Agents and LLMs
Turn any URL into structured, AI-ready data. One API call. No infrastructure to manage.
import requests, os
headers = {
'Authorization': f'Bearer {os.getenv("SPIDER_API_KEY")}',
'Content-Type': 'application/json',
}
json_data = {
"url": "https://spider.cloud",
"return_format": "markdown"
}
response = requests.post('https://api.spider.cloud/scrape',
headers=headers, json=json_data)
print(response.json())Get any data, from any site
Other crawlers break on the first bot check. Spider doesn't. Antidetect browsers, proxy rotation, and vision AI that actually works.
UNMATCHED SPEED
Crawl 100 pages in under 2 seconds. Results stream back as they're collected.
PAY PER USE
No monthly plans, no commitments. Just pay per page. Unit price drops as volume goes up.
RELIABILITY
Built from the ground up to get past blocks. Proxy rotation and anti-bot bypass on every request.
AI EXTRACTION
Tell us what data you need. Our vision models look at the actual page, not just the HTML, and pull out structured JSON.
"Get every listing with price and rating" <div class="listing">
<h3>MacBook Air M4</h3>
<span>$1,099</span>
<span>4.8 ★</span>
</div> [
{ "title": "MacBook Air M4",
"price": "$1,099",
"rating": 4.8 }
] INTEGRATIONS
SDKs for Python, Node, Rust, and Go. Plugins for LangChain, LlamaIndex, CrewAI, and more. Takes minutes, not days.
SPEED TEST
tailwindcss.com · 06/2024Three modes, one API. Smart mode figures out which pages need a browser and which don't, so you don't have to.
Teams trust Spider to collect the web
Powering data pipelines for AI companies, agencies, and developers worldwide.
The browser for
AI agents
Give your AI a real browser. Act, extract, observe, and automate any page with built-in stealth, CAPTCHA solving, and smart retry.
import { SpiderBrowser } from "spider-browser" const browser = new SpiderBrowser({ apiKey: process.env.SPIDER_API_KEY!, stealth: 0, // auto-escalate captcha: "solve", }) await browser.init() await browser.page.goto("https://protected-site.com") // AI agent browses autonomously const result = await browser.agent({ maxRounds: 10 }) .execute("Find cheapest flight to Tokyo")
npm i spider-browser | pip install spider-browser | cargo add spider-browser Frequently Asked Questions
Everything you need to know about Spider.
What is Spider?
Spider is a fast web scraping and crawling API designed for AI agents, RAG pipelines, and LLMs. It supports structured data extraction and multiple output formats including markdown, HTML, JSON, and plain text.
How can I try Spider?
Sign up and get free credits to test, or explore the Open-Source Spider engine.
What are the rate limits?
Every account can make up to 50,000 core API requests per second.
What formats can Spider convert web data into?
Spider outputs HTML, raw, text, and various markdown formats. It supports JSON, JSONL, CSV, and XML for API responses.
Can you crawl all pages?
Yes, Spider accurately crawls all necessary content without needing a sitemap ethically. We rate-limit individual URLs per minute to balance the load on a web server.
Does it respect robots.txt?
Yes, compliance with robots.txt is default, but you can disable this if necessary.