create_node
Create a new node in Neo4j
LABSCO SUMMARY
Graph access costs three tool definitions, not a wrapper per operation.
execute_query covers everything Cypher covers, which means reads, aggregations, updates and deletes all arrive through one small surface, and the two creation tools exist so the writes you do constantly need no query text at all. Because parameters are a separate argument, the values in a generated query stay out of the query itself.
What it is
A three-tool Neo4j client: arbitrary Cypher with bound parameters, plus direct creation of a node and of a relationship between two nodes.
What you get
- Any Cypher query, with values passed through params rather than interpolated into the query string
- Node creation from a label and a property map
- Relationship creation between two node IDs, with a type and its own properties
Requirements
A reachable Neo4j instance and its password. npx on your PATH.
Setup effort
One command plus credentials — npx -y @alanse/mcp-neo4j-server, then supply credentials
USE CASES
01
Exploring a graph you did not build
One tool takes Cypher, so labels, relationship types and counts are all reachable in the same way — the shape of an unfamiliar database gets mapped by asking it rather than by finding whoever designed it.
02
Loading entities and links into a fresh graph
The two creation tools cover the writes you repeat most — a node with a label and properties, then an edge between two node IDs — while anything more involved goes through Cypher with its values passed as parameters.
3 tools
Counted once with only startup setup. Other versions, modes or optional credentials may expose a different list.
create_relationship
Create a relationship between two nodes
execute_query
Execute a Cypher query on Neo4j database
BEFORE YOU INSTALL
What to know first
Tools you get
3 tools when we connected. execute_query runs arbitrary Cypher, including CREATE, UPDATE and DELETE, so it can do anything your Neo4j user is permitted to do, including deleting data.
Requires
- npx on PATH
- NEO4J_PASSWORD in your environment
Where it runs
The documented client runs the server on your machine.
CONTEXT COST
Light Standing cost
Rated by the size of the 3 tool definitions that ride along on every turn, not by how many there are
INSTALLATION
Connect your client
Server setup
TERMINAL
npx -y @alanse/mcp-neo4j-serverMCP Clients
Claude Desktop
CLAUDE DESKTOP · JSON
{
"mcpServers": {
"neo4j": {
"command": "npx",
"args": [
"@alanse/mcp-neo4j-server"
],
"env": {
"NEO4J_URI": "bolt://localhost:7687",
"NEO4J_USERNAME": "neo4j",
"NEO4J_PASSWORD": "<YOUR_NEO4J_PASSWORD>",
"NEO4J_DATABASE": "neo4j"
}
}
}
}
