# europepmc-references

Fetch the reference list for a Europe PMC article.

Agent View of the PolicyLayer registry record for `europepmc-references`. HTML page: https://policylayer.com/tools/io-github-derekslinz-meta-data-mcp/europepmc-references

## Facts

- Tool: `europepmc-references`
- Server: Meta Data Mcp (`pypi:meta-data-mcp`) — https://policylayer.com/tools/io-github-derekslinz-meta-data-mcp.md
- Install: `npx -y pypi:meta-data-mcp`
- Homepage: https://github.com/derekslinz/meta-data-mcp
- Risk category: Read (Low risk)
- Registry record: grade F, identity unverified
- Server rate-limited: no
- Parameters: 0
- Recommended policy verdict: Allowed

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

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

## Why europepmc-references is rated Low

This tool retrieves bibliographic reference data from the Europe PMC (PubMed Central) open API. Fetching references is a read-only operation that queries public scientific literature metadata. There are no side effects, no data modification, no code execution, and no resource consumption beyond standard API queries.

From the tool's own definition: "Tool name 'europepmc-references' and description 'Fetch the reference list for a Europe PMC article' indicate a retrieval operation with no side effects. The verb 'Fetch' is a classic read operation that queries existing data without modification."

## Use case

AI agents call europepmc-references to retrieve information from Meta Data Mcp 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 Meta Data Mcp:

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

## Other tools on Meta Data Mcp (395)

- `hackernews-new-stories` — Execute — https://policylayer.com/tools/io-github-derekslinz-meta-data-mcp/hackernews-new-stories.md
- `opendata_plugins_create` — Execute — https://policylayer.com/tools/io-github-derekslinz-meta-data-mcp/opendata-plugins-create.md
- `ovapi-stop-departures` — Execute — https://policylayer.com/tools/io-github-derekslinz-meta-data-mcp/ovapi-stop-departures.md
- `overpass-query` — Execute — https://policylayer.com/tools/io-github-derekslinz-meta-data-mcp/overpass-query.md
- `ssllabs-analyze` — Execute — https://policylayer.com/tools/io-github-derekslinz-meta-data-mcp/ssllabs-analyze.md
- `wikidata-sparql` — Execute — https://policylayer.com/tools/io-github-derekslinz-meta-data-mcp/wikidata-sparql.md
- `arxiv-get-paper` — Read — https://policylayer.com/tools/io-github-derekslinz-meta-data-mcp/arxiv-get-paper.md
- `arxiv-query` — Read — https://policylayer.com/tools/io-github-derekslinz-meta-data-mcp/arxiv-query.md
- `arxiv-search-by-author` — Read — https://policylayer.com/tools/io-github-derekslinz-meta-data-mcp/arxiv-search-by-author.md
- `arxiv-search-by-category` — Read — https://policylayer.com/tools/io-github-derekslinz-meta-data-mcp/arxiv-search-by-category.md
- `arxiv-search-by-title` — Read — https://policylayer.com/tools/io-github-derekslinz-meta-data-mcp/arxiv-search-by-title.md
- `au-data-gov-get-dataset` — Read — https://policylayer.com/tools/io-github-derekslinz-meta-data-mcp/au-data-gov-get-dataset.md
- `au-data-gov-get-organization` — Read — https://policylayer.com/tools/io-github-derekslinz-meta-data-mcp/au-data-gov-get-organization.md
- `au-data-gov-list-groups` — Read — https://policylayer.com/tools/io-github-derekslinz-meta-data-mcp/au-data-gov-list-groups.md
- `au-data-gov-list-organizations` — Read — https://policylayer.com/tools/io-github-derekslinz-meta-data-mcp/au-data-gov-list-organizations.md
- `au-data-gov-list-tags` — Read — https://policylayer.com/tools/io-github-derekslinz-meta-data-mcp/au-data-gov-list-tags.md
- `au-data-gov-search-datasets` — Read — https://policylayer.com/tools/io-github-derekslinz-meta-data-mcp/au-data-gov-search-datasets.md
- `awc-metar` — Read — https://policylayer.com/tools/io-github-derekslinz-meta-data-mcp/awc-metar.md
- `awc-station` — Read — https://policylayer.com/tools/io-github-derekslinz-meta-data-mcp/awc-station.md
- `awc-taf` — Read — https://policylayer.com/tools/io-github-derekslinz-meta-data-mcp/awc-taf.md
- `ca-open-gov-get-dataset` — Read — https://policylayer.com/tools/io-github-derekslinz-meta-data-mcp/ca-open-gov-get-dataset.md
- `ca-open-gov-get-organization` — Read — https://policylayer.com/tools/io-github-derekslinz-meta-data-mcp/ca-open-gov-get-organization.md
- `ca-open-gov-list-groups` — Read — https://policylayer.com/tools/io-github-derekslinz-meta-data-mcp/ca-open-gov-list-groups.md
- `ca-open-gov-list-licenses` — Read — https://policylayer.com/tools/io-github-derekslinz-meta-data-mcp/ca-open-gov-list-licenses.md
- `ca-open-gov-list-organizations` — Read — https://policylayer.com/tools/io-github-derekslinz-meta-data-mcp/ca-open-gov-list-organizations.md
- `ca-open-gov-list-tags` — Read — https://policylayer.com/tools/io-github-derekslinz-meta-data-mcp/ca-open-gov-list-tags.md
- `ca-open-gov-search-datasets` — Read — https://policylayer.com/tools/io-github-derekslinz-meta-data-mcp/ca-open-gov-search-datasets.md
- `cbs-get-metadata` — Read — https://policylayer.com/tools/io-github-derekslinz-meta-data-mcp/cbs-get-metadata.md
- `cbs-get-typed-dataset` — Read — https://policylayer.com/tools/io-github-derekslinz-meta-data-mcp/cbs-get-typed-dataset.md
- `cbs-list-tables` — Read — https://policylayer.com/tools/io-github-derekslinz-meta-data-mcp/cbs-list-tables.md
- …and 365 more: https://policylayer.com/tools/io-github-derekslinz-meta-data-mcp.md

## 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)
- Query the registry over MCP: endpoint `https://api.policylayer.com/mcp` — tools `check_mcp_server`, `check_mcp_stack`, `check_tool`, `search_registry`, `get_change_events`

---

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