Wikidata

Lists the Wikidata pages that link to a given entity page, which in practice is the set of items that use it as a statement value, plus project pages that mention it.

Returns just the statements of one entity - every property with its value, qualifiers, references and rank - without labels, descriptions or sitelinks.

Runs Wikidata's own property-constraint checks over an entity and returns, per statement, which constraints pass, which are violated and with what severity.

Returns every language code Wikidata accepts for labels, descriptions and aliases, optionally with each one's autonym and English name.

Returns the full Wikidata record for one or more entities: labels, descriptions and aliases in every language, all statements with qualifiers and references, and sitelinks to Wikipedia and sister projects.

Resolves a Wikipedia (or sister project) page title to its Wikidata entity and returns that entity's full record.

Returns the complete stored JSON of one entity exactly as it was at a given revision id, in the same shape as the entities capability.

Lists Wikidata pages that contain an external link matching a URL pattern, with the exact URL found on each - in practice the items whose statements or references cite that site.

Runs the Elasticsearch-backed wiki search over Wikidata pages and returns matching Q-numbers with a total hit count and snippets; supports the haswbstatement: operator to find items by statement value.

Returns Wikidata items whose coordinate location (P625) falls within a radius of a point, each with its Q-number, latitude, longitude and distance in metres, nearest first.

Returns every alternative name recorded for the item, as a map of language code to an array of strings - pen names, abbreviations, former names, transliterations.

Returns a flat map of language code to the item's one-line disambiguating description, such as 'British science fiction writer and humorist (1952-2001)'.

Returns the item's label in a single language as a bare JSON string, nothing else - the whole response for Q937 is 17 bytes.

Returns a flat map of language code to label for one item - 5 KB for Q42 against the 314 KB the full record costs.

Returns the title, badges and URL of the item's page on a single named wiki - a 100-byte answer instead of the 18 KB full sitelink set.

Returns every wiki page connected to the item, keyed by site id, each with the page title, its badges and a ready-built URL.

Parses human-written strings into the canonical Wikidata value objects - a date into a time value with precision and calendar model, a coordinate into a globecoordinate, a number into a quantity.

Returns a P-number's definition: its value data type, its labels, descriptions and aliases in every language, and its own statements including formatter URLs and constraint declarations.

Returns the complete map of Wikibase property data types to the value types they serialise as, e.g. wikibase-item to wikibase-entityid and globe-coordinate to globecoordinate.

Returns a P-number's label in one language as a bare JSON string - 15 bytes to learn that P569 means 'date of birth'.

Returns the site-wide stream of recent edits, creations and deletions with timestamps, revision ids and the affected Q-numbers, newest first.

Returns the revision list for an entity page - revision id, parent id, timestamp, editor and edit comment - newest first, and optionally the stored entity JSON of each revision.

Searches entity labels, aliases and descriptions and returns ranked candidates with their Q-number, label, description and concept URI.

Returns every Wikimedia wiki grouped by language, each with its database name, URL, project and closed flag - the authoritative list of the site ids sitelinks use.

Runs a SPARQL 1.1 SELECT or ASK against the Wikidata Query Service and returns the standard SPARQL JSON results object with a head.vars list and a results.bindings array.

Returns one statement on its own - property, value, data type, rank, qualifiers and references - addressed by the statement GUID that appears in every claims or statements response.