LangChain Neo4j Skill

Expert assistance for langchain-neo4j: connect LangChain to Neo4j for graph-powered RAG, natural language Cypher queries, vector search, knowledge graph construction, and LangGraph state persistence.

Install: pip install -U langchain-neo4j
Docker: docker run -p 7474:7474 -p 7687:7687 -e NEO4J_AUTH=neo4j/password neo4j:latest
Env vars: NEO4J_URI, NEO4J_USERNAME, NEO4J_PASSWORD

Reference: references/api.md (500 KB — full API reference).