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GET nlm.nih.gov HTTP 200177 ms6.4 KB$0.000062 captured Aug 7, 2026

nlm.nih.gov, as data

One API turns any nlm.nih.gov 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 177 ms
Page size
6.4 KB of markdown, 108 lines
Fields
Condition, Treatment, Provider, Description
Captured
Aug 7, 2026

Free balance on signup, no card. This nlm.nih.gov page cost $0.000062 to fetch.

response 200 · 177 ms · 6.4 KB
** Secure .gov websites use HTTPS **) or **https://** means you’ve safely connected tothe .gov website. Share sensitive information only on official,# Accelerating Biomedical Discovery and Data-Powered Health* PubMed Citations for biomedical literature* MedlinePlus Reliable, up-to-date health information for you* Open-i An experimental multimedia search engine* MeSH Medical Subject Headings* ClinicalTrials.gov A database of clinical studies, worldwide* BLAST Basic Local Alignment Search Tool## HighlightsNIH Virtual Tour: National Library of MedicineNLM is the world's largest biomedical library and a national resource for health professionals, scientists, and the public.## Of Interest### NIH-developed AI algorithm matches potential volunteers to clinical trialsResearchers from NLM and the National Cancer Institute have developed an artificial intelligence (AI) algorithm tohelp speed up the process of matching potential volunteers to relevant clinical research trials listed onClinicalTrials.gov. A study published in *Nature Communications* found that the AI algorithm, called TrialGPT,could successfully identify relevant clinical trials for which a person is eligible and provide a summary that clearlyexplains how that person meets the criteria for study enrollment. The researchers concluded that this tool could helpclinicians navigate the vast and ever-changing range of clinical trials available to their patients, which may lead toimproved clinical trial enrollment and faster progress in medical research.## Research at NLM### [NLM Divisionof Intramural Research](https://www.nlm.nih.gov/research/index.html)Intramural research at NLM consists of the development and application ofcomputational approaches to a broad range of problems in biomedicine, molecular biology, and health.**READ RESEARCH HIGHLIGHTS |[ MEET OUR PRINCIPAL
POST /scrape · nlm.nih.gov/index.md · markdown · Showing 28 of 108 lines · captured Aug 7, 2026

What Spider does on nlm.nih.gov

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.

177 ms · $0.000062
/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 nlm.nih.gov'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://nlm.nih.gov/", "return_format": "markdown"}'
plain request · no browser, no selectors

What nlm.nih.gov costs

Multiplied from the measured 6.4 KB page. Estimates round to the cent.

cost measured
This page, once 6.4 KB over HTTP, measured $0.000062
This page, daily for a month 30 fetches at the measured price ≈ $0.001869
1,000 pages this size 6.2 MB at the measured price ≈ $0.06
10,000 pages this size 62.2 MB at the measured price ≈ $0.62

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 nlm.nih.gov.

The capture above took 177 ms and cost $0.000062. The same call takes any URL on nlm.nih.gov.

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