Wikidata / Run a SPARQL query

Runs one SPARQL query on the Wikidata Query Service and returns SPARQL JSON results (head.vars and results.bindings, each value with type and value). Use it for lists and joins, e.g. every company headquartered in a city, or people born in a year. Always add a LIMIT (100 or less is a good default): answers over 2 MB fail at $0, and the service stops a query after 60 seconds (timeout, $0). Prefixes wd:, wdt:, p:, ps:, rdfs:, schema:, wikibase: and SERVICE wikibase:label are predefined. A syntax error answers 400 at $0. Data from Wikidata (wikidata.org), CC0 1.0 public domain: no attribution required, a link to Wikidata is welcome. Not endorsed by the Wikimedia Foundation. Free, no key.