PoliticsStandardCC0

data.europa.eu SPARQL — DCAT-AP graph search

Name: data.europa.eu SPARQL — DCAT-AP graph search
License: CC0

data.europa.eu exposes the entire DCAT-AP metadata catalogue via SPARQL 1.1 (Virtuoso). More precise than the Hub Search API for: dataset → distribution → accessURL traversal, publisher- and theme-driven dataset-discovery flows, and combined temporal+spatial filters. The connector has read-only guardrails (deny INSERT/DELETE/DROP/CLEAR/CREATE/LOAD), an enforced LIMIT (default 100, max 1,000), client-adjustable timeout (1–15s) and a 1-hour in-memory cache per (query, format, limit). Issue #3255.

—

Data volume

Daily

Updates

MCP tools

Example response — /connectors/data-europa-sparql/query

{
  "data": "..."
}

MCP integration

Available MCP tools

data_europa_sparql_about

data_europa_sparql_health

data_europa_sparql_query

Configuration for Claude Desktop / Cursor

{
  "mcpServers": {
    "data-europa-sparql": {
      "url": "https://data.ketl.no/mcp/data-europa-sparql",
      "headers": {
        "Authorization": "Bearer $KETL_API_KEY"
      }
    }
  }
}

API endpoints

GET

/health

ASK { ?s ?p ?o }-probe

deep optional: Sett `deep=1` for å få med det fulle probe-objektet (`deepProbe`). Enhver annen verdi gir samme svar som uten parameteren — verdimengden er IKKE lukket, så ruta avviser ingenting (MÅLT 2026-08-30). deep=1

Show curl example

# GET https://data.ketl.no/api/connectors/data-europa-sparql/health
curl \
  -H "Accept: application/json" \
  "https://data.ketl.no/api/connectors/data-europa-sparql/health"

Authenticated call — add one of these headers: x-api-key: ketl_… · Authorization: Bearer … — See the full reference in the documentation.

GET

/query

Read-only SPARQL-spørring (SELECT/ASK)

query required: SPARQL-spørring query=SELECT * WHERE { ?s ?p ?o } LIMIT 1

Show curl example

# GET https://data.ketl.no/api/connectors/data-europa-sparql/query?query=SELECT%20*%20WHERE%20%7B%20%3Fs%20%3Fp%20%3Fo%20%7D%20LIMIT%201
curl \
  -H "Accept: application/json" \
  "https://data.ketl.no/api/connectors/data-europa-sparql/query?query=SELECT%20*%20WHERE%20%7B%20%3Fs%20%3Fp%20%3Fo%20%7D%20LIMIT%201"

Authenticated call — add one of these headers: x-api-key: ketl_… · Authorization: Bearer … — See the full reference in the documentation.

POST

/query

Read-only SPARQL-spørring (POST body)

query required: SPARQL-spørring query=SELECT * WHERE { ?s ?p ?o } LIMIT 1

Show curl example

# POST https://data.ketl.no/api/connectors/data-europa-sparql/query?query=SELECT%20*%20WHERE%20%7B%20%3Fs%20%3Fp%20%3Fo%20%7D%20LIMIT%201
curl -X POST \
  -H "Accept: application/json" \
  "https://data.ketl.no/api/connectors/data-europa-sparql/query?query=SELECT%20*%20WHERE%20%7B%20%3Fs%20%3Fp%20%3Fo%20%7D%20LIMIT%201"

Authenticated call — add one of these headers: x-api-key: ketl_… · Authorization: Bearer … — See the full reference in the documentation.

Access and pricing

data.europa.eu SPARQL — DCAT-AP graph search is openly available — create an account to get started.

eusparqldcat-apgrafdiscovery