To help you get started with Spider, we’ll give you $200 in credits when you spend $100. Get Credits

LangChain integration now available

The World's Fastest and Cheapest Crawler API

Example request
import requests, os

headers = {
    'Authorization': os.environ["SPIDER_API_KEY"],
    'Content-Type': 'application/json',

json_data = {"limit":50,"url":""}

response ='', 


Unmatched Speed


To crawl 200 pages


Faster than alternatives


Cheaper than traditional scraping services

Benchmarks displaying performance between Spider Cloud, Firecrawl, and Apify.
Example used -

Foundations for Crawling Effectively

Leading in performance

Spider is written in Rust and runs in full concurrency to achieve crawling dozens of pages in secs.

Optimal response format

Get clean and formatted markdown, HTML, or text content for fine-tuning or training AI models.


Further boost speed by caching repeated web page crawls.

Smart Mode

Spider dynamically switches to Headless Chrome when it needs to.


Scrape with AI

Do custom browser scripting and data extraction using the latest AI models.

Best crawler for LLMs

Don't let crawling and scraping be the highest latency in your LLM & AI agent stack.

Scrape with no headaches

  • Proxy rotations
  • Agent headers
  • Avoid anti-bot detections
  • Headless chrome
  • Markdown LLM Responses

The Fastest Web Crawler

  • Powered by spider-rs
  • Do 20,000 pages in seconds
  • Full concurrency
  • Powerful and simple API
  • 5,000 requests per minute

Do more with AI

  • Custom browser scripting
  • Advanced data extraction
  • Data pipelines
  • Perfect for LLM and AI Agents
  • Accurate website labeling

See what's being said


Frequently asked questions about Spider

What is Spider?

Spider is a leading web crawling tool designed for speed and cost-effectiveness, supporting various data formats including LLM-ready markdown.

Why is my website not crawling?

Your crawl may fail if it requires JavaScript rendering. Try setting your request to 'chrome' to solve this issue.

Can you crawl all pages?

Yes, Spider accurately crawls all necessary content without needing a sitemap.

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.

Is Spider suitable for large scraping projects?

Absolutely, Spider is ideal for large-scale data collection and offers a cost-effective dashboard for data management.

How can I try Spider?

Purchase credits for our cloud system or test the Open Source Spider engine to explore its capabilities.

Does it respect robots.txt?

Yes, compliance with robots.txt is default, but you can disable this if necessary.