Serve

lokf serve publishes a bundle locally as a SPARQL endpoint plus a live graph explorer — the reference bundle you see on the Knowledge graph page, served from your own checkout.

8000/sparql

uv run lokf serve examples/acme-knowledge
# lokf: 86 triples from examples/acme-knowledge
# lokf: graph explorer   http://127.0.0.1:8000/
# lokf: Ctrl-C to stop

It binds 127.0.0.1:8000 by default; --host and --port change that. The just serve recipe wraps the command:

just serve examples/acme-knowledge

Routes

Route	Method	What it returns
/sparql	GET ?query= / POST	SPARQL 1.1 protocol — SELECT/ASK return application/sparql-results+json, CONSTRUCT/DESCRIBE return Turtle
/graph.json	GET (optional ?query= CONSTRUCT)	cytoscape.js elements for the graph
/	GET	the interactive graph explorer (HTML)
/static/cytoscape.min.js	GET	the bundled viz library

Query it with curl

The endpoint speaks the standard SPARQL protocol, so any client works:

curl -s 'http://127.0.0.1:8000/sparql' \
  --data-urlencode 'query=SELECT ?s ?name WHERE { ?s schema:name ?name } ORDER BY ?name'

The schema prefixes are preset here exactly as they are for lokf query, so your query needs no PREFIX block.

Fully offline

The server ships everything it needs. The graph explorer’s JavaScript (cytoscape.min.js) is served from the package at /static/, nothing is fetched from a CDN, and no telemetry leaves the machine. lokf serve runs with no network access at all — handy for air-gapped review of a knowledge base.