What can Research papers do?

It exposes 38 tools: crossref__doi, crossref__search, crossref__journal, crossref__funders, crossref__members, pubmed__search, pubmed__summary, pubmed__pmc-search, pubmed__clinical-trials-search, ror__search, ror__organisation, ror__affiliation.

Is Research papers safe and reliable?

Trust score 70/100 (grade B), based on live reachability, verified publisher, maintenance, adoption, transparency and tool quality. See our methodology.

Servers / Search & Research

Research papers

si.fourzerotwo/research

arXiv, PubMed, Crossref and OpenAlex scholarly metadata.

Compare Website ↗

Yes, your AI can use this right now.Answered a live MCP handshake in 832 ms with no sign-in needed and exposes 38 tools.

Connect it

Settings → Connectors → Add custom connector
URL: https://fourzerotwo.si/mcp/v/research

Settings → Apps & Connectors → Advanced → Developer mode
Create connector with URL: https://fourzerotwo.si/mcp/v/research

{
  "mcpServers": {
    "research": {
      "url": "https://fourzerotwo.si/mcp/v/research",
      "headers": {
        "X-API-Key": "<YOUR_X_API_KEY>"
      }
    }
  }
}

claude mcp add --transport http research https://fourzerotwo.si/mcp/v/research --header "X-API-Key: <value>"

{
  "servers": {
    "research": {
      "type": "http",
      "url": "https://fourzerotwo.si/mcp/v/research",
      "headers": {
        "X-API-Key": "<YOUR_X_API_KEY>"
      }
    }
  }
}

38 tools, verified live

Pulled straight from the server with tools/list on 2026-10-17.

crossref__doiread-only

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__searchread-only

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

crossref__journalread-only

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

crossref__fundersread-only

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

crossref__membersread-only

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

pubmed__searchread-only

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

pubmed__summaryread-only

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-searchread-only

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-searchread-only

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__searchread-only

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.

ror__organisationread-only

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.

ror__affiliationread-only

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.

ror__external-idread-only

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__relationshipsread-only

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

scholarly__works-searchread-only

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__workread-only

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

scholarly__authors-searchread-only

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

scholarly__authorread-only

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

scholarly__institutions-searchread-only

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

scholarly__sources-searchread-only

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

scholarly__topics-searchread-only

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

scholarly__autocompleteread-only

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

scholarly__citing-worksread-only

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

arxiv__searchread-only

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

arxiv__paperread-only

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__recentread-only

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

arxiv__recent-cs-airead-only

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

arxiv__recent-cs-lgread-only

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

arxiv__recent-cs-clread-only

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

arxiv__recent-cs-cvread-only

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

arxiv__recent-cs-crread-only

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

arxiv__recent-cs-roread-only

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

arxiv__recent-stat-mlread-only

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

arxiv__recent-quant-phread-only

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

arxiv__recent-astro-phread-only

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

arxiv__recent-q-finread-only

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

arxiv__recent-econread-only

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

arxiv__recent-q-bioread-only

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

Trust score

Grade B

Transparent, computed daily. How it works

Live reachability30/30

Verified publisher17/20

Track record1/10

Adoption0/15

Transparency5/5

Tool quality10/10

Health

Last 2 checks · 50.0% up over 7 days

Status: Live
Auth: API key
Transport: streamable-http
Latency: 832 ms
Protocol: 2025-06-18
Version: 1.0.1
Publisher: ✓ fourzerotwo.si
Category: Search & Research
Stars: —
npm / week: —
License: —
Updated: 2026-10-11
Last check: 2026-10-17

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