# Eu Cellar (npm · @pipeworx/mcp-eu-cellar)

Every document the Publications Office of the European Union publishes — legislation, treaties…

- Trust score: 82/100 (high trust)
- Change this week: +4
- Registry status: active
- Liveness: live
- Owner verified: no
- Last scored: 2026-11-05

## Components

- remote · `gateway.pipeworx.io`: 77/100, [markdown](https://verifymcp.io/servers/pipeworx-io-eu-cellar/eu-cellar-mcp.md), [page](https://verifymcp.io/servers/pipeworx-io-eu-cellar/eu-cellar-mcp)
- npm · `@pipeworx/mcp-eu-cellar`: 82/100 (this document), [markdown](https://verifymcp.io/servers/pipeworx-io-eu-cellar/pipeworx-mcp-eu-cellar.md), [page](https://verifymcp.io/servers/pipeworx-io-eu-cellar/pipeworx-mcp-eu-cellar)

## Channel facts

- Registry: `npm`
- Package: `@pipeworx/mcp-eu-cellar`
- Version: `0.2.1`
- Transport: `stdio`

## Trust breakdown

How this component scores in each security and reliability category. Every signal is checked automatically from public evidence about the published package, including repeated runs of it in an isolated sandbox, and we only credit what we can confirm. Scores are 0–100 per category. Scoring method: https://verifymcp.io/docs/scoring (what has changed: https://verifymcp.io/docs/scoring/changelog)

Scored 2026-11-05.

- **Supply Chain Security**: 100/100
  - No malware found by supply-chain analysis.
  - No known CVEs affecting this package version or its production dependencies.
  - No install/post-install scripts declared.
  - No production dependencies, so there is no dependency health to assess.
- **Provenance & Transparency**: 97/100
  - Source repository is publicly reachable at the declared URL.
  - Cryptographically verified build provenance (signed, bound to pipeworx-io/mcp-eu-cellar).
  - Clear OSI-approved license (MIT).
  - Actively maintained (last published 3 days ago).
  - Disclosure check failed: no security disclosure policy was found in the source repository.
- **Schema Quality & AI Usability**: 61/100
  - AI-judged instruction clarity (excellent).
  - Context-footprint check failed: tool/resource definitions use about 1227 tokens (~306/item across 4 items; 4 tools + 0 resources), over budget; trim descriptions and params.
  - Usage-examples check failed: none of the tools include examples.
- **Stability & Change Management**: 23/100
  - Stability observed for 7 of 30 days with no destabilising changes; credit accrues until the full window elapses.
- **Tool Coverage**: 100/100
  - 100% of tools have a non-trivial description (not blank, and not just the tool's name).
  - 100% of tool parameters carry a description.
- **Tool Safety**: 100/100
  - No prompt-injection markers were found in the server instructions, tool names or descriptions we captured.
  - We read all 4 captured tool definition(s), and no name or description among them implies an irreversible operation.
  - An AI judge read all 5 captured unit(s) of tool text and found none that tries to manipulate the model reading it.
- **Capabilities**: 100/100
  - Implements a supported MCP spec version (2025-11-25); the latest is 2026-07-28.

## Install

### How do I install the Eu Cellar MCP server?

Eu Cellar runs locally as an npm package, launched with npx -y @pipeworx/mcp-eu-cellar. Ready-made configuration for Claude, Cursor, VS Code, Codex and 5 more is on this page, copied from each client's own documentation.

### Claude

```bash
claude mcp add pipeworx-io-eu-cellar -- npx -y @pipeworx/mcp-eu-cellar
```

### Cursor

```json
{
  "mcpServers": {
    "pipeworx-io-eu-cellar": {
      "command": "npx",
      "args": [
        "-y",
        "@pipeworx/mcp-eu-cellar"
      ]
    }
  }
}
```

### VS Code

```json
{
  "servers": {
    "pipeworx-io-eu-cellar": {
      "command": "npx",
      "args": [
        "-y",
        "@pipeworx/mcp-eu-cellar"
      ]
    }
  }
}
```

### Codex

```bash
codex mcp add pipeworx-io-eu-cellar -- npx -y @pipeworx/mcp-eu-cellar
```

### opencode

```json
{
  "$schema": "https://opencode.ai/config.json",
  "mcp": {
    "pipeworx-io-eu-cellar": {
      "type": "local",
      "command": [
        "npx",
        "-y",
        "@pipeworx/mcp-eu-cellar"
      ],
      "enabled": true
    }
  }
}
```

### OpenClaw

```bash
openclaw mcp add pipeworx-io-eu-cellar --command npx --arg -y --arg @pipeworx/mcp-eu-cellar
```

### Hermes

```yaml
mcp_servers:
  pipeworx-io-eu-cellar:
    command: "npx"
    args: ["-y", "@pipeworx/mcp-eu-cellar"]
```

### Netclaw

```json
{
  "McpServers": {
    "pipeworx-io-eu-cellar": {
      "Transport": "stdio",
      "Command": "npx",
      "Arguments": [
        "-y",
        "@pipeworx/mcp-eu-cellar"
      ]
    }
  }
}
```

### Vellum

```bash
assistant mcp add pipeworx-io-eu-cellar -t stdio -c npx -a -y @pipeworx/mcp-eu-cellar
```

### Other

```json
{
  "mcpServers": {
    "pipeworx-io-eu-cellar": {
      "command": "npx",
      "args": [
        "-y",
        "@pipeworx/mcp-eu-cellar"
      ]
    }
  }
}
```

## Changelog

Every change recorded for this component, newest first. Days that predate change tracking, or that we cannot explain, say so: "we were watching and nothing happened" and "we were not watching" are different claims.

### 2026-11-05 (score 82, +1)

No change was recorded against any check on this day. Stability & Change Management went from 20 to 23. That category is still filling its 30-day observation window: 6 days of observed history at the previous scan, 7 at this one. The score rises as the window fills, whether or not the server changes.

### 2026-11-03 (score 81, +1)

No change was recorded against any check on this day. Stability & Change Management went from 13 to 17. That category is still filling its 30-day observation window: 4 days of observed history at the previous scan, 5 at this one. The score rises as the window fills, whether or not the server changes.

### 2026-11-01 (score 80, +2)

- [security regression] Tool safety: pass → unverified
- [security] Stability: Stability not yet verified: we do not have a sandbox capture of the MCP schema this version of the package serves yet.
- [functional regression] Tool coverage: 100 → unverified
- [functional regression] Capabilities: pass → unverified
- [functional improvement] Stability: unverified → 0.10
- [functional] First check of Schema quality: unverified
- [functional] Package version: 0.2.0 → 0.2.1

### 2026-10-30 (score 78, 0)

- [functional regression] Security disclosure: unverified → fail

### 2026-10-29 (score 78)

First indexed and scored.

## MCP tools (4)

### `cellar_search_works` (~293 tokens)

Full-text search of EVERY document the Publications Office of the European Union has issued — Official Journal acts, treaties, consolidated texts, COM proposals, Court of Justice judgments and preparatory work — by title, from the CELLAR repository. AUTHORITATIVE for "what has the EU published about X": this is the publisher of record, so it returns the CELEX number, the document date, the resource type and a direct EUR-Lex link, not a summary of one. PREFER OVER WEB SEARCH for any question about EU legal or official documents. Unlike the curated `eur-lex` pack, this searches all resource types, not a hand-kept list of named acts.

Input parameters:

- `limit` (number): Maximum works to return (default 20, max 100).
- `query` (string, required): Words or a phrase to find in the document title, e.g. "artificial intelligence" or "carbon border adjustment". Matched against the Publications Office full-text index.
- `resource_type` (string): Optional resource-type code to restrict to, e.g. REG (Regulation), DIR (Directive), DEC (Decision), JUDG (judgment), COM (Commission document), CONS_TEXT (consolidated text), TREATY.
- `since` (string): Optional earliest document date, ISO YYYY-MM-DD.
- `until` (string): Optional latest document date, ISO YYYY-MM-DD.

### `cellar_work` (~188 tokens)

Full metadata for one EU document from the Publications Office CELLAR repository, looked up by CELEX number (e.g. 32024R1689 for the AI Act) or by CELLAR UUID. Returns every English title on record, the document and in-force dates, the resource type, the EuroVoc subject concepts it is indexed under, and the authoring bodies. AUTHORITATIVE for the identity and classification of an EU act — this is the publisher's own catalogue entry.

Input parameters:

- `celex` (string): CELEX identifier, e.g. 32016R0679 (GDPR), 32024R1689 (AI Act), 62024CJ0123 (a judgment). Give this OR cellar_id.
- `cellar_id` (string): CELLAR UUID as it appears in a publications.europa.eu/resource/cellar/<id> URI. Give this OR celex.

### `cellar_sparql` (~180 tokens)

Run your own read-only SPARQL SELECT or ASK against the Publications Office of the European Union CELLAR endpoint, for EU-document questions no purpose-built tool covers — citation graphs, amendment chains, EuroVoc concept traversal, cross-institution counts. The Common Data Model prefix `cdm:` is <http://publications.europa.eu/ontology/cdm#>. Writes (INSERT/DELETE/LOAD/CLEAR) are refused, and results are capped.

Input parameters:

- `limit` (number): Maximum rows to return (default 50, max 500). Applied on top of any LIMIT already in the query.
- `query` (string, required): A SPARQL SELECT or ASK query. Virtuoso full-text search is available as `?lit bif:contains "'phrase'"`. CELEX literals are typed xsd:string — a plain string will match nothing.

### `eu_transposition_measures` (~511 tokens)

For an EU Directive, the national implementing measures (NIM) that each member state has notified to the European Commission — the Publications Office's own transposition tracker, read live from CELLAR. Give a CELEX number (e.g. "32019L1937" for the Whistleblower Directive), the "2019/1937" short form, or a common name (e.g. "Whistleblower Directive", "GDPR"). For a Directive, returns every member state with its measure(s) — title, type of act, document date, notification date, national Official Journal citation — and member states with NO recorded measure are listed explicitly as "none recorded", never dropped. A member state can notify dozens of measures (France has 36 for the Whistleblower Directive, Czechia 80, Croatia 93), mixing the actual transposing act with older provisions CELLAR also links — CELLAR itself does not flag which measure is "the" one, so measures within each state are ordered by how closely a measure's own title echoes the directive's own title (read in whichever language scores best), then by newest document date, which in practice surfaces the real transposing act first or near first; `limit_per_state` (default 10) then truncates that ranked list, with `truncated: true` meaning more exist. Where a live Pipeworx national-legislation pack covers that state (Germany/de-gesetze, Austria/at-ris, Italy/it-normattiva, Netherlands/nl-wetten, France/france-legi, Spain/boe-legislacion) the matching pack and tools are named so you can drill into the actual provision text — no SPARQL required anywhere in this chain. A Regulation is answered directly: regulations are not transposed (Article 288 TFEU), so this says that plainly rather than returning an empty list.

Input parameters:

- `directive` (string, required): CELEX number ("32019L1937"), short form ("2019/1937"), or common name ("Whistleblower Directive", "GDPR").
- `limit_per_state` (number): Max measures listed per member state before truncation (default 10, max 50). Some directives have dozens of related national measures per state.
- `member_state` (string): Optional: restrict to one EU member state — English name, ISO2 ("DE"), or ISO3 ("DEU"). Omit to get all 27.

## Diagnostics

Captured diagnostic sections: Provenance, Dependencies. The full working is on the page: https://verifymcp.io/servers/pipeworx-io-eu-cellar/pipeworx-mcp-eu-cellar#diagnostics

## Score history

- 2026-11-05: 82
- 2026-11-04: 81
- 2026-11-03: 81
- 2026-11-02: 80
- 2026-11-01: 80
- 2026-10-31: 78
- 2026-10-30: 78
- 2026-10-29: 78

## Common questions

### What is the Eu Cellar MCP server?

Eu Cellar is an MCP server listed in the public MCP registry as io.github.pipeworx-io/eu-cellar. Every document the Publications Office of the European Union publishes, legislation, treaties… This page covers its npm package (@pipeworx/mcp-eu-cellar).

### Is the Eu Cellar MCP server safe to use?

Eu Cellar scores 82 out of 100 on VerifyMCP. We found no known CVEs affecting it as of 5 November 2026. It declares no install or post-install scripts. Its build provenance is signed and verified. That is a record of what we were able to check automatically, not an endorsement. The category breakdown on this page shows every signal behind the number, including the ones we could not confirm.

### What tools does the Eu Cellar MCP server expose?

Eu Cellar exposes 4 tools: cellar_search_works, cellar_work, cellar_sparql, eu_transposition_measures. Their descriptions and schemas cost roughly 1,172 tokens of context every time the server is loaded.

### Is the Eu Cellar MCP server still maintained?

Eu Cellar is still listed as active in the MCP registry. We last reached this channel on 5 November 2026. Those dates come from our own scans of the registry and the channel itself, not from anything the publisher announced.

### What licence is the Eu Cellar MCP server under?

Eu Cellar declares the MIT licence, which is OSI-approved. That covers the source only, and says nothing about the cost of any service it calls.

### What did VerifyMCP test on the Eu Cellar MCP server?

VerifyMCP ran 16 checks on Eu Cellar, covering Malware scan, Known CVEs, Install scripts, Dependency health and 12 more. Endpoint Security and Transport & Reachability do not apply to an npm package, so they were not tested. The score does not measure everything, and the scoring documentation lists what it leaves out.

## Links

- npm package: https://www.npmjs.com/package/@pipeworx/mcp-eu-cellar
- Socket report: https://socket.dev/npm/package/@pipeworx/mcp-eu-cellar
- Repository: https://github.com/pipeworx-io/mcp-eu-cellar
- Website: https://pipeworx.io/packs/eu-cellar
- Changelog RSS feed: https://verifymcp.io/servers/pipeworx-io-eu-cellar/pipeworx-mcp-eu-cellar.xml
- Changelog JSON feed: https://verifymcp.io/servers/pipeworx-io-eu-cellar/pipeworx-mcp-eu-cellar/changelog.json
- Trust report (JSON): https://verifymcp.io/servers/pipeworx-io-eu-cellar/pipeworx-mcp-eu-cellar.json
- HTML version of this page: https://verifymcp.io/servers/pipeworx-io-eu-cellar/pipeworx-mcp-eu-cellar