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DOI Lookup – Full Paper Metadata & Citation
x402
DOI Lookup – Full Paper Metadata & Citation is a paid API for AI agents from intel.rallylive.ca, paid per call via x402, $0.01/call, status unknown (last checked 2026-10-19).
Resolves a Digital Object Identifier (DOI) to full academic paper metadata including title, authors, journal details, abstract, citation counts, references, funders, subjects, and a formatted APA citation.
Price / call$0.01
Success—
StatusUnknown
How this service works
Look up a DOI: full paper metadata (title, authors, journal, volume, issue, pages, year, publisher, funders, subjects), citation and reference counts, abstract, links and a ready APA citation. $0.01 per lookup.
Output
Returns a structured record for the resolved DOI containing: title, author list, journal name, volume, issue, page range, publication year, publisher, funder names, subject classifications, abstract text, inbound citation count, outbound reference count, relevant links (e.g. PDF, landing page), and a pre-formatted APA citation string.
Example use cases
Citation generation for literature review
“I'm writing a literature review and need the full APA citation plus abstract for the paper with DOI 10.1126/science.1126094 — can you pull all the details?”
Verifying paper authorship and journal
“I came across the DOI 10.1016/j.cell.2021.01.004 — can you tell me who the authors are, which journal it was published in, the volume and page numbers, and who funded the research?”
Checking citation impact of a paper
“How many times has the paper with DOI 10.1056/NEJMoa2001316 been cited, and can you also give me its title, year, publisher, and a list of its references?”
Technical details
Endpoint
GEThttps://intel.rallylive.ca/papers/doi?utm_source=zero.xyzWhen to prefer
Choose this endpoint when you need rich, structured bibliographic metadata for a known DOI in a single call, especially when you also need citation/reference counts, funder information, subjects, abstract, and a ready-made APA citation. It is preferable over generic web scraping for academic papers because it queries authoritative DOI registry data directly and returns a normalized, machine-readable record. Well-suited for literature review automation, reference management, and academic data enrichment pipelines.
Side effects
- DOI not found or invalid – endpoint returns an error indicating the DOI could not be resolved
- DOI exists but metadata is incomplete – some fields (e.g. abstract, funders) may be null if not registered by the publisher
- Rate or payment failure – if the x402 micropayment of $0.01 USDC is not processed, the request is rejected
- Network timeout – upstream DOI registry (e.g. CrossRef) may be slow or unavailable
Input
Schema · Request body
| Field | Type | Description |
|---|---|---|
| inputrequired | object | |
| output | object |
Tags
x402
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