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SYNTHORA OpenAlex Work Metadata by DOI
x402
SYNTHORA OpenAlex Work Metadata by DOI is a paid API for AI agents from openalex-work-by-doi.hergertsynthora.com, paid per call via x402, $0.001/call, status unknown (last checked 2026-09-13).
Resolves a DOI to its full OpenAlex work record, including title, authorships, institutions, citations, open-access location, and topic classification
Price / call$0.001
Success—
StatusUnknown
How this service works
Resolves a single DOI to its full OpenAlex work record: title, authorships with institutions, referenced works, citation count, open-access location and topic classification. A high-value keyless enrichment endpoint for autonomous agents and agent-to-agent workflows building citation graphs and verifying scholarly provenance. First 3 calls FREE per wallet — send header X-WALLET: 0x<addr>. No charge on upstream failure.
Output
A JSON object with ok:true and a result field containing the full OpenAlex work record for the given DOI, including title, authorship list with institutional affiliations, referenced works, citation count, open-access URL, and topic/subject classifications.
Example use cases
Citation graph construction for literature review
“I'm building a citation graph for my literature review. Fetch the full OpenAlex metadata for DOI 10.1126/science.1248506 so I can get its referenced works and citation count to map out connections.”
Verifying scholarly provenance of a claim
“Can you verify the scholarly provenance of this paper? Look up DOI 10.1016/j.cell.2020.10.019 and tell me who the authors are, what institutions they're from, and whether it's open access.”
Enriching a research database with topic classifications
“I have a list of DOIs and I need to enrich them one by one — start with 10.1073/pnas.2026160118 and get me the full OpenAlex record including topic classification and authorship details.”
Technical details
Endpoint
POSThttps://openalex-work-by-doi.hergertsynthora.com/serviceWhen to prefer
Choose this endpoint when you need a single, comprehensive OpenAlex work record for a known DOI without needing an API key — ideal for autonomous agents and agent-to-agent pipelines that need bibliographic enrichment, citation graph construction, or scholarly provenance verification at low cost per call. Prefer this over direct OpenAlex API calls when operating in a pay-per-use, keyless x402 environment.
Side effects
- DOI not found in OpenAlex — returns ok:false or empty result
- Malformed DOI string — may return error or null record
- DOI exists but OpenAlex has incomplete metadata — partial result fields
- Rate limiting or payment failure — HTTP 402 or 429 response
- Network timeout if OpenAlex upstream is slow
Input
Schema · Request body
| Field | Type | Description |
|---|---|---|
| doi | string | doi |
Output
Schema · Response
{
"type": "json",
"example": {
"ok": true,
"niche": "openalex-work-by-doi",
"result": {}
}
}Tags
x402
Reviews
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Zero review prompt (fires after every successful call)
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