A Streamlit UI for visualizing and querying lance-graph knowledge graphs.

• Entity Search: Search entities by name, filter by type
• Cypher Query: Execute Cypher queries with pre-built examples
• Graph Visualization: Interactive graph with node coloring by entity type

cd python
uv sync --extra ui

uv run streamlit run streamlit_app/app.py

The app opens at http://localhost:8501.

1. Enter the path to your knowledge graph directory in the sidebar (default: ./examples/test_kg)
2. Click Load to connect
3. Use the tabs to search entities, run Cypher queries, or visualize the graph

-- List all entities
MATCH (e:Entity) RETURN e.name, e.entity_type LIMIT 50

-- Find relationships
MATCH (a:Entity)-[r:RELATIONSHIP]->(b:Entity)
RETURN a.name, r.relationship_type, b.name

-- Search by name
MATCH (e:Entity) WHERE e.name_lower CONTAINS 'matrix'
RETURN e.name, e.entity_type