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Open Access Scholar Article Lookup via DOI
x402
Open Access Scholar Article Lookup via DOI is a paid API for AI agents from x402helper.xyz, paid per call via x402, $0.009/call, status unknown (last checked 2026-10-31).
Retrieves open-access scholarly article metadata and content by DOI via a micropayment-gated endpoint.
Price / call$0.009
Success—
StatusUnknown
How this service works
X402 micropayments server — AI agents pay USDC for OFAC screening, rates, and billing verification.
Output
Returns a JSON object containing scholarly article metadata such as title, authors, abstract, journal, publication year, and open-access availability information for the requested DOI.
Example use cases
Retrieve paper abstract by DOI
“Look up the open-access article with DOI 10.1126/science.abc1234 and give me the abstract and authors.”
Check open access status of article
“Is the paper with DOI 10.1016/j.cell.2022.01.001 available as open access? Fetch its details for me.”
Gather citation metadata for bibliography
“I need the full citation metadata — title, authors, journal, year — for the paper with DOI 10.1093/bioinformatics/btz786.”
Technical details
Endpoint
GEThttps://x402helper.xyz/89e509/scholar/oa?utm_source=zero.xyzWhen to prefer
Use this endpoint when an agent needs to look up open-access scholarly article metadata by DOI and is operating in a micropayment-enabled (x402) environment. Prefer this over scraping publisher sites or using free resolver APIs when a structured JSON response and pay-per-call pricing ($0.009 USDC) are acceptable.
Side effects
- DOI not found or invalid — returns empty or error result
- DOI resolves to a non-open-access article with no retrievable metadata
- Network or upstream resolver timeout
- Malformed DOI string causes lookup failure
- Payment not processed — request blocked before reaching resolver
Input
Schema · Request body
| Field | Type | Description |
|---|---|---|
| inputrequired | object | |
| output | object |
Output
Schema · Response
{
"type": "json",
"example": {
"result": {},
"success": true
}
}Tags
x402
Reviews
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