Wikibase allows exporting data in RDF format. See details of the implementation in RDF Dump Format

Changes to the RDF mapping are however subject to the Stable Interface Policy, see Wikidata:Stable Interface Policy.

Exporting RDF

Export RDF data from a Wikibase Repository is done with the maintenance script repo/maintenance/dumpRdf.php

By executing the following the Repository contents will be output to the console in RDF format.

$ php extensions/Wikibase/repo/maintenance/dumpRdf.php
 
Dumping entities of type item, property
Dumping shard 0/1
@prefix rdf: <http://www.w3.org/1999/02/22-rdf-syntax-ns#> .
@prefix xsd: <http://www.w3.org/2001/XMLSchema#> .
@prefix rdfs: <http://www.w3.org/2000/01/rdf-schema#> .
@prefix owl: <http://www.w3.org/2002/07/owl#> .
@prefix wikibase: <http://wikiba.se/ontology#> .
...

Parameters

--format Set the dump format, such as "nt" or "ttl". Defaults to "ttl"
--flavor Set the flavor to produce. Can be either "full-dump" or "truthy-dump". Defaults to "full-dump".
- "full-dump" contains all statements regardless of their rank.
- "truthy-dump" does not contain statements with a deprecated rank. If there are statements with normal and preferred rank, only the statements with preferred rank will be exported.
--redirect-only Whether to only export information about redirects.
--part-id Unique identifier for this part of multi-part dump, to be used for marking bnodes.

Change log

The following are the RDF format versions, see FORMAT_VERSION in RdfVocabulary.php.

0.0.1 – Initial implementation
0.0.2 – Changed WKT coordinate order (see T130049)
0.0.3 – Added page props option to wdata: (see T129046)
0.0.4 – Added unit conversion &pan normalization support (see T117031)
0.0.5 – Added quantities without bounds (see T115269)
0.1.0 – Changed sitelink encoding (see T131960)
1.0.0 – Moved ontology URI to [http://wikiba.se/ontology# Ontology] (removed beta) (see T112127)