sparql

📬 A knowledge graph querying framework for JavaScript

AI-native ontology engine: a Rust MCP server with tools for building, validating, querying, and reasoning over RDF/OWL ontologies. In-memory Oxigraph triple store, native OWL2-DL tableaux reasoner, SHACL validation, SPARQL, versioning. Single binary, no JVM.

Harvest-first Rust toolkit for open data metadata: sync 300+ portals (CKAN, DCAT, SPARQL, data.json, Socrata, OpenDataSoft, ArcGIS, CSW, STAC ) into PostgreSQL, add optional local embeddings and semantic search. Ceres Open Data Index (2M+ datasets) on Hugging Face.