si.fourzerotwo/research

up checked 2026-11-11T11:38:59.380Z

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Publisher-provided title

Research papers

Publisher-provided description

arXiv, PubMed, Crossref and OpenAlex scholarly metadata.

Summary by lookupd

Search and retrieve scholarly papers, authors, journals, funders and research organisations across arXiv, PubMed, Crossref and OpenAlex.

Install

Claude Code, remote (streamable-http)

claude mcp add --transport http research https://fourzerotwo.si/mcp/v/research

Codex, remote (streamable-http)

codex mcp add research --url https://fourzerotwo.si/mcp/v/research

Cursor, remote (streamable-http) → .cursor/mcp.json

{
  "mcpServers": {
    "research": {
      "url": "https://fourzerotwo.si/mcp/v/research"
    }
  }
}

Other clients: docs. Or tell your agent: Set up lookupd for me: read https://lookupd.com/agent.md and follow it.

Tools (showing 30 of 38)

Publisher-provided text

• crossref__doi Title, authors, journal, dates, references count and licence for a DOI. Free within the daily allowance, then $0.002 USDC per call via x402.
• crossref__search Bibliographic search across Crossref works. Free within the daily allowance, then $0.003 USDC per call via x402.
• crossref__journal Journal title, publisher and DOI counts by ISSN. Free within the daily allowance, then $0.002 USDC per call via x402.
• crossref__funders Research funders by name, with Funder Registry ids. Free within the daily allowance, then $0.002 USDC per call via x402.
• crossref__members Crossref member publishers by name. Free within the daily allowance, then $0.002 USDC per call via x402.
• pubmed__search PubMed ids matching a query (supports PubMed query syntax). A few free samples a day, then $0.002 USDC per call via x402.
• pubmed__summary 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.
• pubmed__pmc-search Free full-text article ids in PubMed Central. A few free samples a day, then $0.002 USDC per call via x402.
• pubmed__clinical-trials-search PubMed citations that are clinical trial reports for a query. A few free samples a day, then $0.002 USDC per call via x402.
• ror__search 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
• ror__organisation Full record: names and aliases, types, status, founding year, location, website, domains, external ids. Free within the daily allowance, then $0.0005 USDC per c
• ror__affiliation 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,
• ror__external-id 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.
• ror__relationships Parent, child and related organisations of a ROR record. Free within the daily allowance, then $0.001 USDC per call via x402.
• scholarly__works-search 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.
• scholarly__work One work by OpenAlex id (W…) or "doi:10.…". Free within the daily allowance, then $0.002 USDC per call via x402.
• scholarly__authors-search Researchers by name with h-index, works and citation counts. Free within the daily allowance, then $0.002 USDC per call via x402.
• scholarly__author One researcher by OpenAlex id or ORCID. Free within the daily allowance, then $0.002 USDC per call via x402.
• scholarly__institutions-search Universities and research institutions with output stats. Free within the daily allowance, then $0.002 USDC per call via x402.
• scholarly__sources-search Journals and repositories with impact stats. Free within the daily allowance, then $0.002 USDC per call via x402.
• scholarly__topics-search Research topics and fields. Free within the daily allowance, then $0.002 USDC per call via x402.
• scholarly__autocomplete Fast title autocomplete across works. Free within the daily allowance, then $0.001 USDC per call via x402.
• scholarly__citing-works Works that cite a given OpenAlex work id. Free within the daily allowance, then $0.003 USDC per call via x402.
• arxiv__search Search arXiv by keywords, title, author and/or category; sort by relevance or newest. Costs $0.002 USDC per call via x402.
• arxiv__paper 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.
• arxiv__recent The newest submissions in any arXiv category. Costs $0.002 USDC per call via x402.
• arxiv__recent-cs-ai The newest arXiv submissions in cs.AI (Artificial Intelligence). Costs $0.002 USDC per call via x402.
• arxiv__recent-cs-lg The newest arXiv submissions in cs.LG (Machine Learning). Costs $0.002 USDC per call via x402.
• arxiv__recent-cs-cl The newest arXiv submissions in cs.CL (Computation and Language (NLP)). Costs $0.002 USDC per call via x402.
• arxiv__recent-cs-cv The newest arXiv submissions in cs.CV (Computer Vision). Costs $0.002 USDC per call via x402.

Details

• Version: 1.0.1
• Transports: streamable-http
• Uptime (7 days): 100%
• Median latency: 1034 ms
• First indexed: 2026-11-01T10:08:48.787Z
• Last seen in registry: 2026-11-01T10:08:48.796Z
• Website: https://fourzerotwo.si

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• Last crawl: 2026-11-11T17:38:11.606Z
• API base: https://api.lookupd.com
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