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Research & Grey LiteratureMCP serverFirst audited Nov 13, 2026

NCBI PubMed MCP by usefulapi

Search PubMed, read abstracts and summaries, and find similar articles in NCBI PubMed.The vendor's description, from its MCP Registry listing.

Passed public checksAudited Nov 13, 2026

Every public check ran and passed. Public audit: we connect as an AI client would, list the tools and check what they say. We do not run them. How we audit

Does it work?
YesConnected in 253 ms.
Sign-up?
None neededIt answered without any account or key.
Can it change things?
No, read-onlyAll 5 tools say they only read.
Endpointhttps://pubmed-ncbi-e-utilities.usefulapi.io/mcp

Source code Website Streamable HTTP · protocol 2025-11-25 · server version 1.5.1

What we checked, the evidence, and the tools it offers.

What we checked

Security

  • Passed: Connections are encrypted (HTTPS).

  • Passed: No hidden instructions found in tool text.

Safety labels

  • Passed: Every tool says whether it only reads or can change things.

Tools

  • Passed: 5 tools listed.

  • Passed: Every tool describes its inputs with a valid schema.

Protocol

  • Passed: The MCP handshake works (Streamable HTTP).

  • Passed: Protocol version 2025-11-25 (latest).

  • Passed: Unknown requests are refused.

Connection

  • Passed: The server responds.

Tools (5)

As the server describes them. The labels are the server's own: it says whether each tool only reads or can change things.

  • pubmed_searchSearch PubMed with the same query syntax as the PubMed search box (fields, MeSH terms, boolean operators). Returns the total hit count and a list of PMIDs; use pubmed_summary or pubmed_fetch_abstract…Read-only
  • pubmed_summaryGet short metadata for up to 100 PubMed articles by PMID: title, authors, journal, publication date, DOI and PubMed Central ID. Does not return abstracts (use pubmed_fetch_abstracts). E-utilities: es…Read-only
  • pubmed_fetch_abstractsGet the citation and abstract text for up to 20 PubMed articles by PMID, as plain text. Keep the PMID and journal when you cite an article. E-utilities: efetch.fcgi?db=pubmed&rettype=abstract.Read-only
  • pubmed_relatedList PubMed articles that are similar to one article (PubMed's 'similar articles' links), by PMID. Returns the linked PMIDs; use pubmed_summary for their details. E-utilities: elink.fcgi?dbfrom=pubme…Read-only
  • pubmed_database_infoShow PubMed's current record count, last update time and the search field codes (for example TIAB or AU) that pubmed_search accepts. E-utilities: einfo.fcgi?db=pubmed.Read-only

Audit history

  1. Nov 13Passed

What we sent

Every request in this audit, with the answer and how long it took. We never send credentials and never call a tool.

RequestAnswerTime
initializeHTTP 200253 ms
initializedHTTP 20235 ms
tools/listHTTP 200222 ms
prompts/listHTTP 20030 ms
unknown-methodHTTP 40132 ms

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