GET libretexts.org HTTP 200112 ms17.0 KB$0.000145 captured Aug 7, 2026
libretexts.org, as data
One API turns any libretexts.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.
- Render mode
- Plain HTTP, no browser needed
- Response
- HTTP 200 in 112 ms
- Page size
- 17.0 KB of markdown, 160 lines
- Fields
- Business Name, Address, Phone, Category
- Captured
- Aug 7, 2026
Free balance on signup, no card. This libretexts.org page cost $0.000145 to fetch.
# 10 times the power at a fractionof the cost!#### **Content**Build, integrate, maintain, and distribute OER textbooks, homework, and ancillaries from "Curatatories" as centralized repositories for seamless creation, remixing, and discovery.#### **Technology**Develop and sustain the LibreVerse as a dynamic ecosystem of interconnected open-source technologies, driving and empowering all aspects of Open.#### **Development**Support the community in successfully launching new projects through innovative content creation and technology development.#### **Training**Utilize specialized knowledge to provide professional development that equips the community with the skills and confidence to fully utilize the LibreVerse.## ### Upcoming EventsWHY CHOOSE US ## What can LibreTexts Help with? ##### Textbook Libraries * ** 17 subject field libraries available* Over 2000 textbooks for various courses* Ability to remix multiple different textbook chapters from different books and your own material to make a custom textbook* Case Studies, Lab Experiments, Interactive modules##### Homework/Assessment * *ADAPT is a homework system like no other. Create engaging and adaptive assessments from a shared question bank including over 240,000 openly licensed elements.ADAPT provides a unique blend of pre-built, high-quality assessments alongside personalized learning models, offering limitless customization options to ensure that your content aligns perfectly with your curriculum needs. New questions and activity types are always being developed, so the way in which you can assess and encourage your students’ learning is endless.##### Interactive Learning Materials * *You can embed **Jupyter Notebooks, ADAPT Homework Questions, 3D visualizations, Videos and more** directly into textbook pages to create an interactive textbook that is more than just a text online.## Check out our Latest BlogsJul 06, 2026 News #### LibreTexts July 2026 NewsletterWhat Spider does on libretexts.org
Same key, five endpoints. The numbers under a cell were measured on this page.
Page to markdown
Clean text for RAG and LLM context, boilerplate removed. The lane that runs without a key.
112 ms · $0.000145Page to JSON
Spider reads the page and names the fields. Pass your own schema when you need exact keys.
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.
curl -X POST https://api.spider.cloud/scrape \
-H "Authorization: Bearer $SPIDER_API_KEY" \
-H "Content-Type: application/json" \
-d '{"url": "https://libretexts.org/", "return_format": "markdown"}'from spider import Spider
app = Spider()
params = {"return_format": "markdown"}
page = app.scrape_url("https://libretexts.org/", params=params)
print(page[0]["content"])import { Spider } from "@spider-cloud/spider-client";
const app = new Spider();
const [page] = await app.scrapeUrl("https://libretexts.org/", {
return_format: "markdown",
});
console.log(page.content);What libretexts.org costs
Multiplied from the measured 17.0 KB page. Estimates round to the cent.
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 libretexts.org.
The capture above took 112 ms and cost $0.000145. The same call takes any URL on libretexts.org.