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zhuanqian research API – Web Page to Markdown Extractor
x402
zhuanqian research API – Web Page to Markdown Extractor is a paid API for AI agents from research-api-production-d642.up.railway.app, paid per call via x402, $0.005/call, status unknown (last checked 2026-10-27).
Fetches a public URL and returns its content as clean markdown, along with extracted links, title, and word count
Price / call$0.005
Success—
StatusUnknown
How this service works
Research digest (HN/GitHub/arXiv) and web page → markdown extractor. Paid x402 (USDC on Base) routes under /paid/*; free rate-limited demo under /v1/*.
Output
A JSON object containing the page's markdown-formatted text content, its title, a list of extracted hyperlinks, and a word count. The markdown field holds the main readable content of the page, cleaned of HTML boilerplate.
Example use cases
Extract article for research notes
“Grab the content from https://arxiv.org/abs/2401.12345 and give it to me as markdown — I want to pull out the key sections for my notes.”
Convert blog post for offline reading
“Can you fetch https://simonwillison.net/2024/Mar/8/gpt-4-turbo/ and turn it into clean markdown? Keep up to 30,000 characters please.”
Scrape product page for comparison
“Pull the content from https://www.example-shop.com/product/fancy-widget and extract it as markdown so I can compare specs with other products.”
Technical details
Endpoint
GEThttps://research-api-production-d642.up.railway.app/paid/extract?utm_source=zero.xyzWhen to prefer
Choose this endpoint when you need to extract readable markdown content from any public URL quickly and cheaply ($0.005 per call). It is ideal for research pipelines, agent workflows that need to read web pages, or any task requiring clean, structured text from arbitrary URLs. The paid /paid/extract route offers higher reliability and limits than the free /v1/* demo route.
Side effects
- Non-public or paywalled URLs may return empty or partial content
- URLs that require JavaScript rendering may not return full page content
- max_chars cap of 50,000 may truncate very long pages
- Invalid or unreachable URLs will result in fetch errors
- Payment failure (insufficient USDC balance or x402 auth issue) blocks the paid route
Input
Schema · Request body
| Field | Type | Description |
|---|---|---|
| inputrequired | object | |
| output | object |
Output
Schema · Response
{
"type": "json",
"example": {
"url": "https://example.com",
"links": [],
"title": "Example Domain",
"markdown": "# Example Domain ...",
"word_count": 20
}
}Tags
x402
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