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Wikidata
Free collaborative knowledge base of structured facts, queryable by SPARQL and a REST API.
| Category | Knowledge Bases |
|---|---|
| Authentication | No auth |
| Pricing | Free |
| Website | https://www.wikidata.org/ |
| Docs | https://www.wikidata.org/wiki/Wikidata:Data_access |
| Last checked | 2026-10-14 |
| As JSON | /api/v1/directory/wikidata.json |
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