GET openlibrary.org HTTP 200611 ms15.1 KB$0.000145 captured Aug 7, 2026
openlibrary.org, as data
One API turns any openlibrary.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 611 ms
- Page size
- 15.1 KB of markdown, 272 lines
- Fields
- Business Name, Address, Phone, Category and 2 more
- Captured
- Aug 7, 2026
Free balance on signup, no card. This openlibrary.org page cost $0.000145 to fetch.
## Welcome to Open LibraryRead Free Library Books Online Millions of books available through Controlled Digital LendingSet a Yearly Reading Goal Learn how to set a yearly reading goal and track what you readKeep Track of your Favorite Books Organize your Books using Lists & the Reading LogTry the virtual Library Explorer Digital shelves organized like a physical libraryTry Fulltext Search Find matching results within the text of millions of booksBe an Open Librarian Dozens of ways you can help improve the libraryVolunteer at Open Library Discover opportunities to improve the librarySend us feedback Your feedback will help us improve these cardsFailed to fetch carousel. Retry?Books We Love+AND+(collection:(inlibrary)+OR+(!collection:(printdisabled)))+AND+(lending___available_to_browse:true+OR+lending___available_to_borrow:true)+AND++language:eng+AND+openlibrary_subject:openlibrary_staff_picks+AND+!collection:(no-preview)&sort=-lending___last_browse)Recently Returned+AND+collection:(inlibrary)+AND+(lending___available_to_browse:true+OR+lending___available_to_borrow:true)+AND++language:eng+AND+!collection:(no-preview)&sort=-lending___last_browse)## Browse by SubjectScience Fiction 21,156 BooksMystery and Detective Stories 16,035 Books## Around the LibraryHere's what's happened over the last 28 days. More recent changes.## About the ProjectOpen Library is an open, editable library catalog, building towards a web page for every book ever published.Just like Wikipedia, you can contribute new information or corrections to the catalog. You can browse by subjects, authors or lists members have created. If you love books, why not help build a library?* Google Summer of Code Contributors Improve Open Library’s Patron Experience - *July 15, 2026** Security Incident Disclosure - *April 28, 2026** Improving Search by 10% - *April 16, 2026*What Spider does on openlibrary.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.
611 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://openlibrary.org/", "return_format": "markdown"}'from spider import Spider
app = Spider()
params = {"return_format": "markdown"}
page = app.scrape_url("https://openlibrary.org/", params=params)
print(page[0]["content"])import { Spider } from "@spider-cloud/spider-client";
const app = new Spider();
const [page] = await app.scrapeUrl("https://openlibrary.org/", {
return_format: "markdown",
});
console.log(page.content);What openlibrary.org costs
Multiplied from the measured 15.1 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 openlibrary.org.
The capture above took 611 ms and cost $0.000145. The same call takes any URL on openlibrary.org.