# europepmc.literature.references

Retrieve the bibliography (reference list) of a biomedical article from Europe PMC. Provide the article PMID (for PubMed/MEDLINE) or other source-specific ID. Returns the total reference count and bibliographic details for each reference (title, authors, journal abbreviation, year, PMID, DOI where available). Paginate through all references with page_size and page parameters. Useful for backward citation tracking, understanding research foundations, identifying cited authors, and building citation networks.

Agent View of the PolicyLayer registry record for `europepmc.literature.references`. HTML page: https://policylayer.com/tools/io-github-whiteknightonhorse-apibase/europepmc.literature.references

## Facts

- Tool: `europepmc.literature.references`
- Server: Apibase (`apibase-mcp-client`) — https://policylayer.com/tools/io-github-whiteknightonhorse-apibase.md
- Install: `npx -y apibase-mcp-client`
- Homepage: https://github.com/whiteknightonhorse/APIbase
- Risk category: Read (Low risk)
- Registry record: grade F, identity unverified
- Server auth posture: open
- Server rate-limited: no
- Parameters: 4 (1 required)
- Recommended policy verdict: Allowed

## Parameters

| Parameter | Type | Required | Description |
| --- | --- | --- | --- |
| `id` | string | yes | Numeric PMID (for MED/PubMed) or other source-specific ID of the article whose bibliography you want to retrieve (e.g. "30449648"). |
| `src` | string | no | Source database of the target article. "MED" = PubMed (default). "PMC" = PubMed Central full-text. Use the same src you used to find the article. |
| `page` | integer | no | Page number for pagination when a paper has many references (default 1). |
| `page_size` | integer | no | Number of references to return per page (1–1000, default 10). |

Parameters from the server's own tool schema.

## Example call (MCP tools/call, JSON-RPC 2.0)

```json
{
  "jsonrpc": "2.0",
  "id": 1,
  "method": "tools/call",
  "params": {
    "name": "europepmc.literature.references",
    "arguments": {
      "id": "<id>"
    }
  }
}
```

## Why europepmc.literature.references is rated Low

Tool retrieves and queries existing bibliographic data with no side effects or data modification.

From the tool's own definition: "Retrieve the bibliography, returns bibliographic details, backward citation tracking."

## Use case

AI agents call europepmc.literature.references to retrieve information from Apibase without modifying anything. It is typically the context-gathering step in research, monitoring, and reporting workflows, before the agent takes action elsewhere.

## Recommended policy (PolicyLayer)

Verdict: **Allowed**. Enforced by the PolicyLayer MCP gateway (https://policylayer.com/mcp-gateway) before a call reaches Apibase:

```json
{
  "version": "1",
  "default": "deny",
  "tools": {
    "europepmc.literature.references": {}
  }
}
```

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## For agents

This record is a snapshot. Live verdicts and the full registry:

- Check every server in your MCP config at once: `npx -y policylayer stack`
- Vet a server before you add it: install the mcp-precheck skill — `npx skills add https://policylayer.com` (skill text: https://policylayer.com/skill.md)
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---

Source: the PolicyLayer MCP registry — one continuously verified record per MCP server. Full record: https://policylayer.com/registry?q=io-github-whiteknightonhorse-apibase · API: https://policylayer.com/registry/api · Policy library: https://policylayer.com/policies/io-github-whiteknightonhorse-apibase