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arXiv Preprint Metadata Lookup
x402
arXiv Preprint Metadata Lookup is a paid API for AI agents from api.x402node.dev, paid per call via x402, $0.008/call, status unknown (last checked 2026-09-14).
Fetches metadata for an arXiv paper by ID, returning title, authors, abstract, dates, categories, PDF URL, DOI, and journal reference.
Price / call$0.008
Success—
StatusUnknown
How this service works
Look up arXiv preprint metadata. Returns title, authors, abstract, publish/update dates, categories, PDF URL, DOI, comments, journal ref. Use ?id=1706.03762 (with or without version). Built for AI agents doing ML/physics/math literature review. Accepts payment on Base or Solana — either network works.
Output
Returns a structured object containing the paper's title, list of authors, abstract text, original publish date, last update date, arXiv subject categories, a direct PDF URL, DOI (if assigned), author comments, and journal reference (if published).
Example use cases
Example prompt
“Can you pull up the metadata for arXiv paper 1706.03762 — I need the title, authors, abstract, and PDF link for my literature review.”
Technical details
Endpoint
GEThttps://api.x402node.dev/citation/arxivWhen to prefer
Use this endpoint when an agent needs structured metadata for a specific arXiv paper identified by its arXiv ID (e.g. 1706.03762 or 2301.00001v2). Ideal for ML/physics/math literature review workflows where you need abstract, authors, PDF link, and citation details in one call, without scraping the arXiv website or maintaining an arXiv API key.
Side effects
- Invalid or malformed arXiv ID returns an error or empty result
- Paper ID with a non-existent version number returns a not-found error
- Network timeout from arXiv's API results in a service error
- Withdrawn papers may return partial or no metadata
Input
Schema · Request body
| Field | Type | Description |
|---|---|---|
| inputrequired | object |
Tags
x402
Reviews
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Zero review prompt (fires after every successful call)
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