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GET hypothes.is HTTP 200140 ms10.6 KB$0.000512 captured Aug 7, 2026

hypothes.is, as data

One API turns any hypothes.is 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 140 ms
Page size
10.6 KB of markdown, 165 lines
Fields
Title, Content, Date, Source
Captured
Aug 7, 2026

Free balance on signup, no card. This hypothes.is page cost $0.000512 to fetch.

response 200 · 140 ms · 10.6 KB
Students aren’t reading. Discussion boards are dead zones. AI shortcuts are everywhere. Hypothesis — the market-leading social annotation platform — transforms passive assignments into active, collaborative learning. Built for higher education. Integrated directly into your LMS.## How Does Hypothesis Social Annotation Work?## Comment and highlight directly over content.Students, faculty, and colleagues can highlight and comment directly on online articles, websites, videos, and more without switching platforms.## Turn Annotations into Discussions.Students, faculty, and teams can share ideas, ask questions, provide insights and respond directly to annotations. Creating a dialogue directly over content.## Tag Other Users for Increased Collaboration.Faculty, students, and teams can engage more deeply by tagging peers directly in annotations, triggering notifications and encouraging students to revisit course materials and participate in ongoing discussions.## **Why 300+ Institutions Choose Hypothesis**### **Human Centered Learning in the Age of AI**Hypothesis is built on a simple belief: real learning happens when students engage directly with ideas — not when they summarize them for an AI.Students are turning to AI to shortcut the reading and thinking that higher education depends on. Hypothesis restores what matters: real engagement with course materials, deeper critical reading, and authentic dialogue between students and instructors. Instead of policing AI, faculty can create learning environments where students actually read, think, and contribute.**Explore how Hypothesis supports AI literacy:*** Case Study: Generative AI and Social Annotation →* Blog: Why Social Annotation Is an Essential Tool for AI-Era Literacy →
POST /scrape · hypothes.is/index.md · markdown · Showing 15 of 165 lines · captured Aug 7, 2026

What Spider does on hypothes.is

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.

140 ms · $0.000512
/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 hypothes.is'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://hypothes.is/", "return_format": "markdown"}'
plain request · no browser, no selectors

What hypothes.is costs

Multiplied from the measured 10.6 KB page. Estimates round to the cent.

cost measured
This page, once 10.6 KB over HTTP, measured $0.000512
This page, daily for a month 30 fetches at the measured price ≈ $0.02
1,000 pages this size 10.3 MB at the measured price ≈ $0.51
10,000 pages this size 103.3 MB at the measured price ≈ $5.12

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 hypothes.is.

The capture above took 140 ms and cost $0.000512. The same call takes any URL on hypothes.is.

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