GET substack.com HTTP 200115 ms7.6 KB$0.000468 captured Aug 7, 2026

substack.com, as data

One API turns any substack.com 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 115 ms
Page size: 7.6 KB of markdown, 99 lines
Fields: Post title, Author, Subtitle, Date and 4 more
Captured: Aug 7, 2026

Start scraping substack.com See the code

Free balance on signup, no card. This substack.com page cost $0.000468 to fetch.

response 200 · 115 ms · 7.6 KB

### Make money doing the work you believe inStart your SubstackLearn morewhat enjoying my rent looks like:Espresso & Brown Butter Cookie Affogato - up on Sunday 😍#### You made it, you own itYou always own your intellectual property, mailing list, and subscriber payments. With full editorial control and no gatekeepers, you can do the work you most believe in.[stoop thoughts in sickness and in health](https://sydneytowle.substack.com/p/in-sickness-and-in-health)Got existential at the piercing studio for my dear friends at sex happens:[Sex Happens So there's this belly button piercing that healed my inner child](https://sexhappens.substack.com/p/so-theres-this-belly-button-piercing)#### Great discussionsJoin the most interesting and insightful discussions.AI can generate the song. It cannot generate the concert. AI can generate the itinerary. It cannot generate more August coastline. AI can draft the memo. It cannot generate the signer who bears blame. AI can simulate companionship. It cannot generate another human being whose desires are not yours. Lorenzo Bonfiglio#### Log in or sign up

POST /scrape · substack.com/index.md · markdown · 99 lines · captured Aug 7, 2026

What Spider does on substack.com

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.

115 ms · $0.000468

/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 substack.com'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://substack.com/", "return_format": "markdown"}'

from spider import Spider

app = Spider()
params = {"return_format": "markdown"}
page = app.scrape_url("https://substack.com/", params=params)
print(page[0]["content"])

import { Spider } from "@spider-cloud/spider-client";

const app = new Spider();
const [page] = await app.scrapeUrl("https://substack.com/", {
  return_format: "markdown",
});
console.log(page.content);

plain request · no browser, no selectors

What substack.com costs

Multiplied from the measured 7.6 KB page. Estimates round to the cent.

cost measured

This page, once 7.6 KB over HTTP, measured $0.000468

This page, daily for a month 30 fetches at the measured price ≈ $0.01

1,000 pages this size 7.4 MB at the measured price ≈ $0.47

10,000 pages this size 74.1 MB at the measured price ≈ $4.68

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 substack.com.

The capture above took 115 ms and cost $0.000468. The same call takes any URL on substack.com.

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