sparql
7 servers · 232★ total
Browser-based RDF/ontology knowledge graph editor — load RDF from files, URLs or SPARQL endpoints; author nodes and edges on the canvas; run OWL-RL reasoning; apply multi-algorithm layout and clustering. AI-native via MCP tool surface and relay bridge. Fully client-side, no backend required.
Ontology-based MCP server that analyzes database schemas (PostgreSQL, Snowflake, ClickHouse, Dremio) and generates RDF/OWL ontologies with SQL mappings for fan-trap-free Text-to-SQL.
MCP Server für Open Data der Stadt Zürich – 23 Tools für CKAN, Geodaten, Gemeinderat, Stadtratsbeschlüsse, Tourismus und Echtzeitdaten (Wetter, Luft, See, Parking, ÖV). 6 APIs, 5 Resources.
Search EU legislation, CJEU case law, and treaties; traverse the CELLAR relationship graph; resolve EuroVoc concepts via MCP. STDIO or Streamable HTTP.
MCP server for Swiss federal law (Fedlex) — search the SR, monitor legal changes, and query BBl/treaties via Claude Desktop or Claude.ai
Search and fetch Wikidata entities, execute SPARQL queries, and resolve external identifiers via MCP. STDIO or Streamable HTTP.
MCP server giving LLM agents access to databases, files, graphs, and a full data science toolkit — 52 tools across 13 database types and 20+ file formats