Research papers

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arXiv, PubMed, Crossref and OpenAlex scholarly metadata.

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Status: Healthy
Last Tested: 2026-10-11 20:31
Transport: Streamable HTTP · MCP 2025-11-25
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Available Tools

38 tools

arxiv__paperarXiv Papers: Paper by id

Read-onlyIdempotent

Inspect

Full metadata for up to 20 arXiv ids: title, authors, abstract, categories, dates, DOI, journal ref, links. Costs $0.001 USDC per call via x402.

ParametersJSON Schema

Name	Required	Description	Default
`id`	Yes	arXiv id(s), comma-separated (e.g. 1706.03762)

Output Schema

ParametersJSON Schema

Name	Required	Description
No output parameters

arxiv__recentarXiv Papers: Newest in a category

Read-onlyIdempotent

Inspect

The newest submissions in any arXiv category. Costs $0.002 USDC per call via x402.

ParametersJSON Schema

Name	Required	Description	Default
`limit`	No	Results, max 50 (default 25)
`category`	Yes	Category, e.g. math.PR

Output Schema

ParametersJSON Schema

Name	Required	Description
No output parameters

arxiv__recent-astro-pharXiv Papers: Newest in Astrophysics

Read-onlyIdempotent

Inspect

The newest arXiv submissions in astro-ph (Astrophysics). Costs $0.002 USDC per call via x402.

ParametersJSON Schema

Name	Required	Description	Default
`limit`	No	Results, max 50 (default 25)

Output Schema

ParametersJSON Schema

Name	Required	Description
No output parameters

arxiv__recent-cs-aiarXiv Papers: Newest in Artificial Intelligence

Read-onlyIdempotent

Inspect

The newest arXiv submissions in cs.AI (Artificial Intelligence). Costs $0.002 USDC per call via x402.

ParametersJSON Schema

Name	Required	Description	Default
`limit`	No	Results, max 50 (default 25)

Output Schema

ParametersJSON Schema

Name	Required	Description
No output parameters

arxiv__recent-cs-clarXiv Papers: Newest in Computation and Language (NLP)

Read-onlyIdempotent

Inspect

The newest arXiv submissions in cs.CL (Computation and Language (NLP)). Costs $0.002 USDC per call via x402.

ParametersJSON Schema

Name	Required	Description	Default
`limit`	No	Results, max 50 (default 25)

Output Schema

ParametersJSON Schema

Name	Required	Description
No output parameters

arxiv__recent-cs-crarXiv Papers: Newest in Cryptography and Security

Read-onlyIdempotent

Inspect

The newest arXiv submissions in cs.CR (Cryptography and Security). Costs $0.002 USDC per call via x402.

ParametersJSON Schema

Name	Required	Description	Default
`limit`	No	Results, max 50 (default 25)

Output Schema

ParametersJSON Schema

Name	Required	Description
No output parameters

arxiv__recent-cs-cvarXiv Papers: Newest in Computer Vision

Read-onlyIdempotent

Inspect

The newest arXiv submissions in cs.CV (Computer Vision). Costs $0.002 USDC per call via x402.

ParametersJSON Schema

Name	Required	Description	Default
`limit`	No	Results, max 50 (default 25)

Output Schema

ParametersJSON Schema

Name	Required	Description
No output parameters

arxiv__recent-cs-lgarXiv Papers: Newest in Machine Learning

Read-onlyIdempotent

Inspect

The newest arXiv submissions in cs.LG (Machine Learning). Costs $0.002 USDC per call via x402.

ParametersJSON Schema

Name	Required	Description	Default
`limit`	No	Results, max 50 (default 25)

Output Schema

ParametersJSON Schema

Name	Required	Description
No output parameters

arxiv__recent-cs-roarXiv Papers: Newest in Robotics

Read-onlyIdempotent

Inspect

The newest arXiv submissions in cs.RO (Robotics). Costs $0.002 USDC per call via x402.

ParametersJSON Schema

Name	Required	Description	Default
`limit`	No	Results, max 50 (default 25)

Output Schema

ParametersJSON Schema

Name	Required	Description
No output parameters

arxiv__recent-econarXiv Papers: Newest in Economics

Read-onlyIdempotent

Inspect

The newest arXiv submissions in econ (Economics). Costs $0.002 USDC per call via x402.

ParametersJSON Schema

Name	Required	Description	Default
`limit`	No	Results, max 50 (default 25)

Output Schema

ParametersJSON Schema

Name	Required	Description
No output parameters

arxiv__recent-q-bioarXiv Papers: Newest in Quantitative Biology

Read-onlyIdempotent

Inspect

The newest arXiv submissions in q-bio (Quantitative Biology). Costs $0.002 USDC per call via x402.

ParametersJSON Schema

Name	Required	Description	Default
`limit`	No	Results, max 50 (default 25)

Output Schema

ParametersJSON Schema

Name	Required	Description
No output parameters

arxiv__recent-q-finarXiv Papers: Newest in Quantitative Finance

Read-onlyIdempotent

Inspect

The newest arXiv submissions in q-fin (Quantitative Finance). Costs $0.002 USDC per call via x402.

ParametersJSON Schema

Name	Required	Description	Default
`limit`	No	Results, max 50 (default 25)

Output Schema

ParametersJSON Schema

Name	Required	Description
No output parameters

arxiv__recent-quant-pharXiv Papers: Newest in Quantum Physics

Read-onlyIdempotent

Inspect

The newest arXiv submissions in quant-ph (Quantum Physics). Costs $0.002 USDC per call via x402.

ParametersJSON Schema

Name	Required	Description	Default
`limit`	No	Results, max 50 (default 25)

Output Schema

ParametersJSON Schema

Name	Required	Description
No output parameters

arxiv__recent-stat-mlarXiv Papers: Newest in Statistics: Machine Learning

Read-onlyIdempotent

Inspect

The newest arXiv submissions in stat.ML (Statistics: Machine Learning). Costs $0.002 USDC per call via x402.

ParametersJSON Schema

Name	Required	Description	Default
`limit`	No	Results, max 50 (default 25)

Output Schema

ParametersJSON Schema

Name	Required	Description
No output parameters

arxiv__searcharXiv Papers: Search papers

Read-onlyIdempotent

Inspect

Search arXiv by keywords, title, author and/or category; sort by relevance or newest. Costs $0.002 USDC per call via x402.

ParametersJSON Schema

Name	Required	Description
`q`	No	Keywords (all must match)
`sort`	No	relevance (default), submitted or updated
`limit`	No	Results, max 50 (default 20)
`start`	No	Offset for paging
`title`	No	Phrase in the title
`author`	No	Author name
`category`	No	Category, e.g. cs.CL

Output Schema

ParametersJSON Schema

Name	Required	Description
No output parameters

crossref__doiCrossref DOI Metadata: DOI lookup

Read-onlyIdempotent

Inspect

Title, authors, journal, dates, references count and licence for a DOI. Free within the daily allowance, then $0.002 USDC per call via x402.

ParametersJSON Schema

Name	Required	Description	Default
`doi`	Yes	DOI

Output Schema

ParametersJSON Schema

Name	Required	Description
No output parameters

crossref__fundersCrossref DOI Metadata: Search funders

Read-onlyIdempotent

Inspect

Research funders by name, with Funder Registry ids. Free within the daily allowance, then $0.002 USDC per call via x402.

ParametersJSON Schema

Name	Required	Description	Default
`q`	Yes	Funder

Output Schema

ParametersJSON Schema

Name	Required	Description
No output parameters

crossref__journalCrossref DOI Metadata: Journal by ISSN

Read-onlyIdempotent

Inspect

Journal title, publisher and DOI counts by ISSN. Free within the daily allowance, then $0.002 USDC per call via x402.

ParametersJSON Schema

Name	Required	Description	Default
`issn`	Yes	ISSN

Output Schema

ParametersJSON Schema

Name	Required	Description
No output parameters

crossref__membersCrossref DOI Metadata: Search publishers

Read-onlyIdempotent

Inspect

Crossref member publishers by name. Free within the daily allowance, then $0.002 USDC per call via x402.

ParametersJSON Schema

Name	Required	Description	Default
`q`	Yes	Publisher

Output Schema

ParametersJSON Schema

Name	Required	Description
No output parameters

crossref__searchCrossref DOI Metadata: Search works

Read-onlyIdempotent

Inspect

Bibliographic search across Crossref works. Free within the daily allowance, then $0.003 USDC per call via x402.

ParametersJSON Schema

Name	Required	Description	Default
`q`	Yes	Query

Output Schema

ParametersJSON Schema

Name	Required	Description
No output parameters

pubmed__clinical-trials-searchPubMed: Search clinical trial records

Read-onlyIdempotent

Inspect

PubMed citations that are clinical trial reports for a query. A few free samples a day, then $0.002 USDC per call via x402.

ParametersJSON Schema

Name	Required	Description	Default
`term`	Yes	Query with [pt] filter

Output Schema

ParametersJSON Schema

Name	Required	Description
No output parameters

pubmed__pmc-searchPubMed: Search PubMed Central

Read-onlyIdempotent

Inspect

Free full-text article ids in PubMed Central. A few free samples a day, then $0.002 USDC per call via x402.

ParametersJSON Schema

Name	Required	Description	Default
`term`	Yes	Query

Output Schema

ParametersJSON Schema

Name	Required	Description
No output parameters

pubmed__searchPubMed: Search PubMed

Read-onlyIdempotent

Inspect

PubMed ids matching a query (supports PubMed query syntax). A few free samples a day, then $0.002 USDC per call via x402.

ParametersJSON Schema

Name	Required	Description	Default
`term`	Yes	Query

Output Schema

ParametersJSON Schema

Name	Required	Description
No output parameters

pubmed__summaryPubMed: Article summaries

Read-onlyIdempotent

Inspect

Title, authors, journal, date and DOI for comma-separated PubMed ids. A few free samples a day, then $0.002 USDC per call via x402.

ParametersJSON Schema

Name	Required	Description	Default
`id`	Yes	PMIDs, comma separated

Output Schema

ParametersJSON Schema

Name	Required	Description
No output parameters

ror__affiliationResearch Organisations (ROR): Match an affiliation string

Read-onlyIdempotent

Inspect

Turn a free-text affiliation (as printed on a paper) into the matching organisation, with ROR's confidence flag and candidates. Free within the daily allowance, then $0.001 USDC per call via x402.

ParametersJSON Schema

Name	Required	Description	Default
`affiliation`	Yes	Affiliation text

Output Schema

ParametersJSON Schema

Name	Required	Description
No output parameters

ror__external-idResearch Organisations (ROR): Lookup by external id

Read-onlyIdempotent

Inspect

Find the organisation for a GRID id, ISNI, Wikidata QID or Crossref Funder ID. Free within the daily allowance, then $0.001 USDC per call via x402.

ParametersJSON Schema

Name	Required	Description	Default
`id`	Yes	GRID, ISNI, Wikidata QID or Crossref Funder ID

Output Schema

ParametersJSON Schema

Name	Required	Description
No output parameters

ror__organisationResearch Organisations (ROR): Organisation by ROR id

Read-onlyIdempotent

Inspect

Full record: names and aliases, types, status, founding year, location, website, domains, external ids. Free within the daily allowance, then $0.0005 USDC per call via x402.

ParametersJSON Schema

Name	Required	Description	Default
`id`	Yes	ROR id, e.g. 052gg0110 or https://ror.org/052gg0110

Output Schema

ParametersJSON Schema

Name	Required	Description
No output parameters

ror__relationshipsResearch Organisations (ROR): Parents & children

Read-onlyIdempotent

Inspect

Parent, child and related organisations of a ROR record. Free within the daily allowance, then $0.001 USDC per call via x402.

ParametersJSON Schema

Name	Required	Description	Default
`id`	Yes	ROR id, e.g. 052gg0110 or https://ror.org/052gg0110

Output Schema

ParametersJSON Schema

Name	Required	Description
No output parameters

ror__searchResearch Organisations (ROR): Search organisations

Read-onlyIdempotent

Inspect

Find research organisations by name, acronym or keyword, optionally filtered by country and type. Free within the daily allowance, then $0.001 USDC per call via x402.

ParametersJSON Schema

Name	Required	Description
`q`	Yes	Name, acronym or keyword
`type`	No	education, funder, healthcare, company, archive, nonprofit, government, facility, other
`country`	No	2-letter country code

Output Schema

ParametersJSON Schema

Name	Required	Description
No output parameters

scholarly__authorScholarly Works (OpenAlex): Author

Read-onlyIdempotent

Inspect

One researcher by OpenAlex id or ORCID. Free within the daily allowance, then $0.002 USDC per call via x402.

ParametersJSON Schema

Name	Required	Description	Default
`id`	Yes	OpenAlex id or orcid:…

Output Schema

ParametersJSON Schema

Name	Required	Description
No output parameters

scholarly__authors-searchScholarly Works (OpenAlex): Search authors

Read-onlyIdempotent

Inspect

Researchers by name with h-index, works and citation counts. Free within the daily allowance, then $0.002 USDC per call via x402.

ParametersJSON Schema

Name	Required	Description	Default
`search`	Yes	Author name

Output Schema

ParametersJSON Schema

Name	Required	Description
No output parameters

scholarly__autocompleteScholarly Works (OpenAlex): Autocomplete works

Read-onlyIdempotent

Inspect

Fast title autocomplete across works. Free within the daily allowance, then $0.001 USDC per call via x402.

ParametersJSON Schema

Name	Required	Description	Default
`q`	Yes	Partial title

Output Schema

ParametersJSON Schema

Name	Required	Description
No output parameters

scholarly__citing-worksScholarly Works (OpenAlex): Papers citing a paper

Read-onlyIdempotent

Inspect

Works that cite a given OpenAlex work id. Free within the daily allowance, then $0.003 USDC per call via x402.

ParametersJSON Schema

Name	Required	Description	Default
`work`	Yes	Filter, e.g. cites:W2919115771

Output Schema

ParametersJSON Schema

Name	Required	Description
No output parameters

scholarly__institutions-searchScholarly Works (OpenAlex): Search institutions

Read-onlyIdempotent

Inspect

Universities and research institutions with output stats. Free within the daily allowance, then $0.002 USDC per call via x402.

ParametersJSON Schema

Name	Required	Description	Default
`search`	Yes	Institution

Output Schema

ParametersJSON Schema

Name	Required	Description
No output parameters

scholarly__sources-searchScholarly Works (OpenAlex): Search journals

Read-onlyIdempotent

Inspect

Journals and repositories with impact stats. Free within the daily allowance, then $0.002 USDC per call via x402.

ParametersJSON Schema

Name	Required	Description	Default
`search`	Yes	Journal

Output Schema

ParametersJSON Schema

Name	Required	Description
No output parameters

scholarly__topics-searchScholarly Works (OpenAlex): Search topics

Read-onlyIdempotent

Inspect

Research topics and fields. Free within the daily allowance, then $0.002 USDC per call via x402.

ParametersJSON Schema

Name	Required	Description	Default
`search`	Yes	Topic

Output Schema

ParametersJSON Schema

Name	Required	Description
No output parameters

scholarly__workScholarly Works (OpenAlex): Paper by id or DOI

Read-onlyIdempotent

Inspect

One work by OpenAlex id (W…) or "doi:10.…". Free within the daily allowance, then $0.002 USDC per call via x402.

ParametersJSON Schema

Name	Required	Description	Default
`id`	Yes	OpenAlex id or doi:…

Output Schema

ParametersJSON Schema

Name	Required	Description
No output parameters

scholarly__works-searchScholarly Works (OpenAlex): Search papers

Read-onlyIdempotent

Inspect

Full-text search of scholarly works, with citations, authors and open-access links. Free within the daily allowance, then $0.003 USDC per call via x402.

ParametersJSON Schema

Name	Required	Description	Default
`search`	Yes	Query

Output Schema

ParametersJSON Schema

Name	Required	Description
No output parameters

Tool Schema Changelog

Recent tool additions, removals, and schema changes observed during successful MCP inspections.

38 tool updatesOct 11, 2026
- First observedarxiv__paper
- First observedarxiv__recent
- First observedarxiv__recent-astro-ph
- First observedarxiv__recent-cs-ai
- First observedarxiv__recent-cs-cl
- First observedarxiv__recent-cs-cr
- First observedarxiv__recent-cs-cv
- First observedarxiv__recent-cs-lg
- First observedarxiv__recent-cs-ro
- First observedarxiv__recent-econ
- First observedarxiv__recent-q-bio
- First observedarxiv__recent-q-fin
- First observedarxiv__recent-quant-ph
- First observedarxiv__recent-stat-ml
- First observedarxiv__search
- First observedcrossref__doi
- First observedcrossref__funders
- First observedcrossref__journal
- First observedcrossref__members
- First observedcrossref__search
- First observedpubmed__clinical-trials-search
- First observedpubmed__pmc-search
- First observedpubmed__search
- First observedpubmed__summary
- First observedror__affiliation
- First observedror__external-id
- First observedror__organisation
- First observedror__relationships
- First observedror__search
- First observedscholarly__author
- First observedscholarly__authors-search
- First observedscholarly__autocomplete
- First observedscholarly__citing-works
- First observedscholarly__institutions-search
- First observedscholarly__sources-search
- First observedscholarly__topics-search
- First observedscholarly__work
- First observedscholarly__works-search

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Tool Schema Changelog

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data-aggregator-mcp

paper-search-mcp

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