`cellar_sparql`

Pack: eu-cellar · Endpoint: https://gateway.pipeworx.io/eu-cellar/mcp

No MCP client? Call it directly: GET https://gateway.pipeworx.io/v1/tools/cellar_sparql for the schema, then POST the same URL with its arguments for the data.

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.

Parameters

Name	Type	Required	Description
`query`	string	yes	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.
`limit`	number	no	Maximum rows to return (default 50, max 500). Applied on top of any LIMIT already in the query.

Example call

Arguments

{
  "query": "PREFIX cdm: <http://publications.europa.eu/ontology/cdm#>\nSELECT ?celex ?date WHERE { ?w cdm:resource_legal_id_celex ?celex ; cdm:work_date_document ?date . FILTER(?date > \"2026-01-01\"^^<http://www.w3.org/2001/XMLSchema#date>) }",
  "limit": 5
}

curl

curl -X POST https://gateway.pipeworx.io/eu-cellar/mcp \
  -H 'Content-Type: application/json' \
  -d '{"jsonrpc":"2.0","id":1,"method":"tools/call","params":{"name":"cellar_sparql","arguments":{"query":"PREFIX cdm: <http://publications.europa.eu/ontology/cdm#>\nSELECT ?celex ?date WHERE { ?w cdm:resource_legal_id_celex ?celex ; cdm:work_date_document ?date . FILTER(?date > \"2026-01-01\"^^<http://www.w3.org/2001/XMLSchema#date>) }","limit":5}}}'

TypeScript (@pipeworx/sdk)

import { Pipeworx } from '@pipeworx/sdk';
const pipeworx = new Pipeworx();

const result = await pipeworx.call('cellar_sparql', {
  "query": "PREFIX cdm: <http://publications.europa.eu/ontology/cdm#>\nSELECT ?celex ?date WHERE { ?w cdm:resource_legal_id_celex ?celex ; cdm:work_date_document ?date . FILTER(?date > \"2026-01-01\"^^<http://www.w3.org/2001/XMLSchema#date>) }",
  "limit": 5
});

More examples

{
  "query": "PREFIX cdm: <http://publications.europa.eu/ontology/cdm#>\nSELECT ?work ?celex WHERE { ?work cdm:resource_legal_id_celex ?celex ; cdm:work_has_resource-type <http://publications.europa.eu/resource/authority/resource-type/DIR> }",
  "limit": 5
}

Connect

Add this to your MCP client config, or use one-click install buttons:

{
  "mcpServers": {
    "eu-cellar": {
      "url": "https://gateway.pipeworx.io/eu-cellar/mcp"
    }
  }
}

See Getting Started for client-specific install steps.

cellar_sparql