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GET cas.org HTTP 200188 ms5.1 KB$0.000221 captured Aug 7, 2026

cas.org, as data

One API turns any cas.org page into markdown, structured JSON, its link graph or a screenshot, and crawls the whole site the same way. The panel shows the real response we captured.

target profile from the capture
Render mode
Plain HTTP, no browser needed
Response
HTTP 200 in 188 ms
Page size
5.1 KB of markdown, 51 lines
Fields
Business Name, Address, Phone, Category and 1 more
Captured
Aug 7, 2026

Free balance on signup, no card. This cas.org page cost $0.000221 to fetch.

response 200 · 188 ms · 5.1 KB
# Introducing CAS ConnectionsCAS scientific data and CAS Newton agentic AI now integrate directly into the R&D platforms researchers already use.# Meet CAS Newton℠: Agentic AI built for scienceConversational access to 150 years of interconnected scientific knowledge sets a new standard for trusted discovery## CAS SciFinder Discovery Platform™Accelerate breakthroughs and get discoveries to market faster using best-in-class scientific solutions throughout the innovation journey.Explore the CAS SciFinder Discovery PlatformCAS SciFinder Discovery Platform™## CAS BioFinder®Advance your drug discovery program with integrated chemistry and biological data and advanced prediction capabilities.Explore CAS BioFinderCAS BioFinder®## STN IP Protection Suite™From new users to expert searchers, accelerate your innovation journey with IP insights that save time and money.Explore the STN IP Protection SuiteSTN IP Protection Suite™## CAS Custom Services℠Partner with CAS to customize solutions for your unique business and R&D challenges with our content, technology and expertise.Explore CAS Custom ServicesCAS Custom Services℠## Cultivating critical biomaterial trends from scientific literatureFocusing on cutting-edge scientific research, Westlake University sought to partner with an organization rich in scientific knowledge expertise and state-of-the-art data analytics capabilities.## Curated scientific knowledge to power discoveryHigh-quality data is the lifeblood of today’s digital R&D pipeline. Every day, our scientists curate, connect, and analyze the valuable data disclosed in scientific publications from around the world to build the CAS Content Collection™, covering over 150 years of discoveries.Our data underpins all CAS Solutions and can be licensed for machine learning or in-house workflow integration. Our scientists also support custom data curation projects through CAS Custom Services.
POST /scrape · cas.org/index.md · markdown · Showing 21 of 51 lines · captured Aug 7, 2026

What Spider does on cas.org

Same key, five endpoints. The numbers under a cell were measured on this page.

/scrape

Page to markdown

Clean text for RAG and LLM context, boilerplate removed. The lane that runs without a key.

188 ms · $0.000221
/fetch

Page to JSON

Spider reads the page and names the fields. Pass your own schema when you need exact keys.

/crawl

Whole site

Follows cas.org's own links, respects robots, streams pages as they land.

/links

Link graph

Every internal and external URL on a page, before you decide what to fetch.

/screenshot

Rendered capture

Real Chromium, full-page PNG. The same call also returns the rendered HTML.

The call behind the panel

This request produced the response above. Paste it with your key and you get the same bytes.

request scrape.sh
curl -X POST https://api.spider.cloud/scrape \
  -H "Authorization: Bearer $SPIDER_API_KEY" \
  -H "Content-Type: application/json" \
  -d '{"url": "https://cas.org/", "return_format": "markdown"}'
plain request · no browser, no selectors

What cas.org costs

Multiplied from the measured 5.1 KB page. Estimates round to the cent.

cost measured
This page, once 5.1 KB over HTTP, measured $0.000221
This page, daily for a month 30 fetches at the measured price ≈ $0.006616
1,000 pages this size 4.9 MB at the measured price ≈ $0.22
10,000 pages this size 49.4 MB at the measured price ≈ $2.21

1 GB of transfer costs $1, plus $0.001 per CPU minute, and failed requests cost $0. Crawling daily? The Unlimited plan is a flat monthly rate.

Point this at the rest of cas.org.

The capture above took 188 ms and cost $0.000221. The same call takes any URL on cas.org.

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