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n8n-nodes-neo4j

v0.2.2

Published

n8n node for Neo4j with LangChain integration, supporting vector stores and graph operations

Vulnerabilities

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Links

Git

Maintainers

kureakurea

Keywords

n8n-community-node-packageneo4jlangchainvector-storegraph-database

Readme

n8n-nodes-neo4j

This is an n8n community node for Neo4j integration with LangChain support. It provides both vector store and graph database operations.

Neo4j is a graph database with vector search for knowledge graphs.

n8n is a fair-code licensed workflow automation platform.

Installation
Operations
Credentials Compatibility
Usage Resources
Version history

Features

  • Vector Store Operations:

    • Similarity Search: Search for similar vectors in the database
    • Add Texts: Add new texts to the vector store

  • Graph Database Operations:

    • Execute Query: Run custom Cypher queries
    • Create Node: Create new nodes with labels and properties
    • Create Relationship: (Coming soon) Create relationships between nodes

Installation

Follow the installation guide in the n8n community nodes documentation.

Operations

Vector Store Operations

Similarity Search

  1. Select "Vector Store" as the resource
  2. Choose "Similarity Search" operation
  3. Enter the query text
  4. Execute to find similar vectors

Add Texts

  1. Select "Vector Store" as the resource
  2. Choose "Add Texts" operation
  3. Enter the texts to add
  4. Execute to store the texts as vectors

Graph Database Operations

Execute Query

  1. Select "Graph Database" as the resource
  2. Choose "Execute Query" operation
  3. Enter your Cypher query
  4. Execute to run the query

Create Node

  1. Select "Graph Database" as the resource
  2. Choose "Create Node" operation
  3. Enter the node label
  4. Provide node properties as JSON
  5. Execute to create the node

Credentials

  1. Add Neo4j credentials in n8n:

    • Connection URI (e.g., neo4j://localhost:7687)
    • Username
    • Password
    • Database name

  2. The node will appear in the n8n nodes panel under "Neo4j"

Compatibility

Tested against n8n 1.88.0

Resources

Version history

1.0 : first runnable version of Neo4j VectorStore node

Development

  1. Clone this repository
  2. Install dependencies: npm install
  3. Build: npm run build
  4. Link to n8n: npm link
  5. In your n8n installation: npm link n8n-nodes-neo4j

Version history

Version 0.1.x

tested against n8n 1.45.1 to 1.86.0 include vector stores retrieval only

Version 0.2.x

tested against n8n 1.88.0 include vector stores and graph

License

MIT