pubmed_article_connections

Identify related PubMed articles or format citations based on a source PMID. Find similar articles, citing references, or referenced works, or generate citations in RIS, BibTeX, APA, or MLA styles.

Instructions

Finds articles related to a source PubMed ID (PMID) or retrieves formatted citations for it. Supports finding similar articles, articles that cite the source, articles referenced by the source (via NCBI ELink), or fetching data to generate citations in various styles (RIS, BibTeX, APA, MLA via NCBI EFetch and server-side formatting). Returns a JSON object detailing the connections or formatted citations.

Input Schema

Name	Required	Description	Default
`citationStyles`	No	An array of citation styles to format the source article into when 'relationshipType' is 'citation_formats'. Supported styles: 'ris', 'bibtex', 'apa_string', 'mla_string'. Default is ['ris'].
`maxRelatedResults`	No	Maximum number of related articles to retrieve for relationship-based searches. Default is 5, max is 50.
`relationshipType`	No	Specifies the type of connection or action: 'pubmed_similar_articles' (finds similar articles), 'pubmed_citedin' (finds citing articles), 'pubmed_references' (finds referenced articles), or 'citation_formats' (retrieves formatted citations).	pubmed_similar_articles
`sourcePmid`	Yes	The PubMed Unique Identifier (PMID) of the source article for which to find connections or format citations. This PMID must be a valid number string.

Input Schema (JSON Schema)

{
  "$schema": "http://json-schema.org/draft-07/schema#",
  "additionalProperties": false,
  "properties": {
    "citationStyles": {
      "default": [
        "ris"
      ],
      "description": "An array of citation styles to format the source article into when 'relationshipType' is 'citation_formats'. Supported styles: 'ris', 'bibtex', 'apa_string', 'mla_string'. Default is ['ris'].",
      "items": {
        "enum": [
          "ris",
          "bibtex",
          "apa_string",
          "mla_string"
        ],
        "type": "string"
      },
      "type": "array"
    },
    "maxRelatedResults": {
      "default": 5,
      "description": "Maximum number of related articles to retrieve for relationship-based searches. Default is 5, max is 50.",
      "exclusiveMinimum": 0,
      "maximum": 50,
      "type": "integer"
    },
    "relationshipType": {
      "default": "pubmed_similar_articles",
      "description": "Specifies the type of connection or action: 'pubmed_similar_articles' (finds similar articles), 'pubmed_citedin' (finds citing articles), 'pubmed_references' (finds referenced articles), or 'citation_formats' (retrieves formatted citations).",
      "enum": [
        "pubmed_similar_articles",
        "pubmed_citedin",
        "pubmed_references",
        "citation_formats"
      ],
      "type": "string"
    },
    "sourcePmid": {
      "description": "The PubMed Unique Identifier (PMID) of the source article for which to find connections or format citations. This PMID must be a valid number string.",
      "pattern": "^\\d+$",
      "type": "string"
    }
  },
  "required": [
    "sourcePmid"
  ],
  "type": "object"
}

PubMed MCP Server