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Halowerk Academic Paper Search
x402
Halowerk Academic Paper Search is a paid API for AI agents from research.halowerk.com, paid per call via x402, $0.005/call, status unknown (last checked 2026-10-11).
Searches OpenAlex and Crossref for academic publications and returns enriched metadata including DOI, authors, affiliations, abstract (reconstructed from inverted index), citation count, venue, and open-access full-text links with licence info.
Price / call$0.005
Success—
StatusUnknown
How this service works
Searches OpenAlex and Crossref for publications and returns each with its DOI, authors and their affiliations, publication year, venue, abstract, citation count and, where one exists, a direct link to a legally free full text with the licence it is offered under. OpenAlex stores abstracts as an inverted word index rather than text; it is reconstructed here, because the raw structure is unusable. Results can be filtered by year and restricted to open access.
Output
A list of academic publications each containing: DOI, list of authors with their institutional affiliations, publication year, journal or conference venue, reconstructed plain-text abstract, citation count, and (where available) a direct URL to a legally free full-text version along with the licence under which it is offered.
Example use cases
Literature review for research proposal
“Search for scholarly papers on transformer-based large language models published since 2021, restrict to open access only, and give me the abstract, citation count, venue, and a link to the full text for each result.”
Competitive intelligence on rival research
“Find me recent peer-reviewed papers on mRNA vaccine delivery mechanisms published between 2019 and 2023, and include the authors' institutional affiliations so I can see which universities are leading this work.”
Fact-checking a scientific claim
“Look up academic publications about the link between sleep deprivation and cardiovascular disease — I need the DOIs, abstracts, and citation counts so I can verify whether this claim is well-supported in the literature.”
Technical details
Endpoint
POSThttps://research.halowerk.com/v1/paper-search?utm_source=zero.xyzWhen to prefer
Choose this endpoint when you need to discover and retrieve academic or scientific literature with rich bibliographic metadata, especially when you need abstracts reconstructed from OpenAlex's inverted index format, author affiliations, and direct open-access full-text links with licence details. Prefer it over generic web search when scholarly credibility, citation counts, and DOIs are required. It is particularly valuable for literature reviews, fact-checking scientific claims, or building research summaries where open-access full text is desirable.
Side effects
- No results found for highly niche or misspelled query terms
- Abstract reconstruction may be incomplete if OpenAlex inverted index data is partial
- Open-access full-text link may be unavailable even when a paper exists
- Rate limiting or upstream API unavailability from OpenAlex or Crossref
- Year filter may exclude relevant preprints if publication year metadata is inconsistent
Input
Schema · Request body
| Field | Type | Description |
|---|---|---|
| doi | string | Exact DOI. Either this or query. |
| sort | string | Result ordering. |
| limit | integer | How many results. |
| query | string | Search terms. Either this or doi. |
| author | string | Restrict to an author name. |
| to_year | integer | Latest publication year. |
| from_year | integer | Earliest publication year. |
| open_access_only | boolean | Only publications with a free full text. |
Tags
x402
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