GET openstax.org HTTP 2003.2 s180.6 KB$0.001036 captured Aug 7, 2026
openstax.org, as data
One API turns any openstax.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 3.2 s
- Page size
- 180.6 KB of markdown, 3,670 lines
- Fields
- Textbook title, Subject, Authors, ISBN and 2 more
- Captured
- Aug 7, 2026
Free balance on signup, no card. This openstax.org page cost $0.001036 to fetch.
* Use a semicolon to join main clauses that are connected by a transitional word or phrase such as *for example, however, therefore, indeed,* or *after all*:> The governor has proposed increased funding to K-12 public schools> the legislature must approve the budget.* Use a semicolon between items in a series that contain internal commas:> The candidates for the award are Michael, who won the essay competition> Sasha, the top debater; and Giselle, who directed several student productions.#### ColonsA colon introduces lists, summaries, and quotations. A colon also separates titles from subtitles.> Successful athletes have the following qualities> physical ability, mental toughness, commitment, and optimism* A colon can also introduce a summary or an explanation, which may or may not be a main clause (a clause that contains a subject and a predicate and can stand alone as a sentence):> The team had one goal left before the end of the season> to win the state championship* Book titles often include a subtitle. A colon separates the subtitle from the title:> Inside the Fight for Marriage Equality#### End PunctuationA sentence ends with a period, a question mark, or an exclamation point.* A period ends declarative (statement) and imperative (command) sentences:> The administration canceled classes> Do not attempt to drive to school this morning* A question mark ends a direct question and indicates uncertainty in dates:* An exclamation point ends an emphatic or emotional sentence:#### Dashes and ParenthesesDashes and parentheses enclose nonessential information in a sentence.* Use a dash or dashes to set off nonessential information, to indicate a contrast or a pause, or to mark a change of direction.> We did not notice the rain at first> Nothing is as exciting as seeing a snowy owl in a winter farm field> except maybe seeing two snowy owls.What Spider does on openstax.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.
3.2 s · $0.001036Page 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://openstax.org/books/writing-guide/pages/handbook", "return_format": "markdown"}'from spider import Spider
app = Spider()
params = {"return_format": "markdown"}
page = app.scrape_url("https://openstax.org/books/writing-guide/pages/handbook", params=params)
print(page[0]["content"])import { Spider } from "@spider-cloud/spider-client";
const app = new Spider();
const [page] = await app.scrapeUrl("https://openstax.org/books/writing-guide/pages/handbook", {
return_format: "markdown",
});
console.log(page.content);What openstax.org costs
Multiplied from the measured 180.6 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 openstax.org.
The capture above took 3.2 s and cost $0.001036. The same call takes any URL on openstax.org.