An HTTP endpoint that accepts SPARQL queries (the W3C-standard query language for RDF) against an RDF dataset and returns results in standard formats (XML, JSON, CSV, TSV), implementing the SPARQL 1.1 Protocol.

ByCASRAI Editorial Board

· Last updated 10 Jul 2026

Examples

Worked examples

Is an instance
The Wikidata Query Service at query.wikidata.org.
Is an instance
A VIVO SPARQL endpoint exposing institutional researcher and publication graph data.

Counter-examples

Looks similar, but isn't

Not an instance
A REST API returning JSON-LD without SPARQL support is not a SPARQL endpoint.
Not an instance
An OAI-PMH endpoint is not a SPARQL endpoint.

Editorial commentary

SPARQL endpoints are the canonical query interface for RDF triple stores and linked-data repositories. Implementations include Apache Jena Fuseki, Virtuoso, Blazegraph, Stardog, GraphDB, and Oxigraph. In research-information contexts, SPARQL endpoints power VIVO researcher profile federations, OpenCitations queries, Wikidata-based scholarly graphs, and many domain-specific knowledge graphs. SPARQL endpoint scalability is a recurrent operational concern, motivating intermediate solutions such as Triple Pattern Fragments.

References

W3C, 'SPARQL 1.1 Protocol' (w3.org/TR/sparql11-protocol).

Also known as

SPARQL service

Machine-readable encodings

Use in your systems

JATS XML <role> element

xml

<role vocab="credit"
      vocab-identifier="https://casrai.org/dictionary/"
      vocab-term="SPARQL endpoint"
      vocab-term-identifier="https://casrai.org/dictionary/term/sparql-endpoint" />

Schema.org DefinedTerm (JSON-LD)

json

{
  "@context": "https://schema.org",
  "@type": "DefinedTerm",
  "@id": "https://casrai.org/dictionary/term/sparql-endpoint",
  "name": "SPARQL endpoint",
  "identifier": "https://casrai.org/dictionary/term/sparql-endpoint",
  "description": "An HTTP endpoint that accepts SPARQL queries (the W3C-standard query language for RDF) against an RDF dataset and returns results in standard formats (XML, JSON, CSV, TSV), implementing the SPARQL 1.1 Protocol.",
  "inDefinedTermSet": "https://casrai.org/dictionary/domain/research-info-systems#set",
  "url": "https://casrai.org/dictionary/term/sparql-endpoint",
  "sameAs": [
    "SPARQL service"
  ],
  "license": "https://creativecommons.org/licenses/by/4.0/",
  "publisher": {
    "@id": "https://casrai.org/#organization"
  },
  "dateModified": "2026-07-10T02:06:20",
  "inLanguage": "en"
}

Referenced across the research world

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