NEW AI Studio is now available Try it now

The Web Crawler for AI Agents and LLMs

Turn any URL into structured, AI-ready data. One API call. No infrastructure to manage.

spider.cloud
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.

PAY PER USE

No monthly plans, no commitments. Just pay per page. Unit price drops as volume goes up.

Cost per crawl LIVE
$ 0 . 0 0 1 1 4 4 2 1
$0.0011 1 100 10K 1M

RELIABILITY

Built from the ground up to get past blocks. Proxy rotation and anti-bot bypass on every request.

99.9%
success rate
30-day uptime

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.

prompt "Get every listing with price and rating"
Source <div class="listing"> <h3>MacBook Air M4</h3> <span>$1,099</span> <span>4.8 ★</span> </div>
Structured
[
  { "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.

+12

Teams trust Spider to collect the web

Powering data pipelines for AI companies, agencies, and developers worldwide.

Computer Use Agents

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.

~4ms latency
100x cheaper
100 concurrent
CUA act() extract() observe() agent() stealth
agent.ts
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")

Start crawling in 30 seconds

One API key. Immediate results. Scale to millions of pages without managing a single server.

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.