Europe PMC Reference List of an Article
europepmc/article-references
Lists the references (bibliography) of one Europe PMC article, identified by source and id (for example MED 31452104): for each reference its id and source when Europe PMC could match it, title, authors, journal, year, volume, pages, ISSN and its position in the reference list. Up to 25 per page with page paging; hitCount gives the total. Bibliographic metadata only. Europe PMC data, EMBL-EBI, served by Eden Engine; not an official Europe PMC product.
Price
$0.0026 per call
You pay the price shown. If a call turns out to cost more than its quote, you pay the actual price, capped at twice the quote. No monthly minimum. Top-ups start at $0.50.
Data source
Data from Europe PMC, run by EMBL-EBI for the Europe PMC Funders' Group (https://europepmc.org). Each article keeps the rights of its publisher; this tool returns bibliographic metadata only. Served by Eden Engine; not an official Europe PMC or EMBL-EBI product.
Use it
Five steps: search, inspect, learn, run, settle. No per-tool setup; your agent reaches this tool through the meta-tools it already has.
Connect once and your AI can find and run this tool, and any other it needs.
// 1. search: find the tool
omnial_search({ query: "what you need" })
// 2. inspect: price and input schema
omnial_inspect({ tool: "europepmc/article-references" })
// 3. learn: read the usage guide at runtime
omnial_learn({ tool: "europepmc/article-references" })
// 4. run: price the exact call first, then run it
omnial_execute({ tool: "europepmc/article-references", input: { /* see input_schema */ }, dry_run: true })
omnial_execute({ tool: "europepmc/article-references", input: { /* ... */ } })
// 5. settle: the call is charged when it finishes, nothing to doNot connected yet? Point your MCP client at https://mcp.eden-engine.com/mcp, then copy a config for your client.
Pricing
Every charge this tool can incur.
| Charge | Price |
|---|---|
Per call | $0.0026 |
- Updated
- Oct 25, 2026
Input and output schemas
Input schema
{
"type": "object",
"required": [
"source",
"id"
],
"properties": {
"id": {
"type": "string",
"pattern": "^[A-Za-z0-9._-]{1,30}$",
"description": "Article id within the source, for example 31452104 for MED or PMC3257301 for PMC. An id Europe PMC does not hold returns hitCount 0."
},
"page": {
"type": "integer",
"default": 1,
"maximum": 10000,
"minimum": 1,
"description": "1-based page number. Defaults to 1."
},
"source": {
"enum": [
"AGR",
"CBA",
"CTX",
"ETH",
"HIR",
"MED",
"NBK",
"PAT",
"PMC",
"PPR"
],
"type": "string",
"description": "Europe PMC source code of the article: MED (PubMed record), PMC (PubMed Central, ids start with PMC), PPR (preprint, ids start with PPR), AGR, CBA, CTX, ETH, HIR, NBK or PAT."
},
"pageSize": {
"type": "integer",
"default": 25,
"maximum": 25,
"minimum": 1,
"description": "Records per page, 1 to 25. Defaults to 25."
}
},
"additionalProperties": false
}Output schema
{
"type": "object",
"required": [
"hitCount"
],
"properties": {
"request": {
"type": "object",
"description": "Echo of the request as Europe PMC understood it.",
"additionalProperties": true
},
"version": {
"type": "string"
},
"hitCount": {
"type": "integer",
"description": "Total number of matching records."
},
"referenceList": {
"type": "object",
"properties": {
"reference": {
"type": "array",
"items": {
"type": "object",
"properties": {
"id": {
"type": "string",
"description": "Identifier within `source`: a PubMed id for MED, a PMC-prefixed id for PMC, and so on."
},
"doi": {
"type": [
"string",
"null"
]
},
"essn": {
"type": [
"string",
"null"
]
},
"issn": {
"type": [
"string",
"null"
]
},
"issue": {
"type": [
"string",
"null"
]
},
"match": {
"type": [
"string",
"null"
]
},
"title": {
"type": [
"string",
"null"
]
},
"source": {
"type": "string",
"description": "Europe PMC source code: MED (PubMed), PMC, PPR (preprint), AGR, CBA, CTX, ETH, HIR, NBK or PAT."
},
"volume": {
"type": [
"string",
"null"
]
},
"pubYear": {
"type": [
"integer",
"null"
]
},
"pageInfo": {
"type": [
"string",
"null"
]
},
"citedOrder": {
"type": [
"integer",
"null"
]
},
"authorString": {
"type": [
"string",
"null"
]
},
"citationType": {
"type": [
"string",
"null"
]
},
"journalAbbreviation": {
"type": [
"string",
"null"
]
},
"unstructuredInformation": {
"type": [
"string",
"null"
]
}
},
"additionalProperties": true
}
}
},
"description": "The references of the given article.",
"additionalProperties": true
}
},
"description": "The references of the given article. When nothing matches, hitCount is 0 and the list object is absent or empty.",
"additionalProperties": true
}