mcp-neo4j-cypher
mcpkey · package officialio.github.neo4j-contrib/mcp-neo4j-cypher · v1.0.0
A simple Neo4j MCP server that allows you to run Cypher queries against a Neo4j database.
run it
on your own machines, one way per deploy methodgenerated from the record, not tested yet
#!/usr/bin/env bash # neo4j-cypher (io.github.neo4j-contrib/mcp-neo4j-cypher), recipe baremetal (generated). # Generated by Hub for toolset "my-agent"; started by mcp-my-agent-neo4j-cypher.service. set -euo pipefail export HOST=127.0.0.1 PORT=8101 exec uvx mcp-proxy --host 127.0.0.1 --port 8101 --pass-environment -- uvx mcp-neo4j-cypher==0.5.1 [Unit] Description=MCP server neo4j-cypher (toolset my-agent), generated by Hub After=network-online.target Wants=network-online.target [Service] Type=simple User=mcp Group=mcp EnvironmentFile=/etc/mcp/my-agent.env Environment=HOME=/var/lib/mcp/neo4j-cypher WorkingDirectory=/var/lib/mcp/neo4j-cypher ExecStart=/opt/mcp/my-agent/bin/neo4j-cypher.sh Restart=on-failure RestartSec=5 NoNewPrivileges=true ProtectSystem=strict ProtectHome=true PrivateTmp=true ReadWritePaths=/var/lib/mcp/neo4j-cypher [Install] WantedBy=multi-user.target
generated from the record, not tested yet
docker run --rm -p 127.0.0.1:8101:8000 -e NEO4J_URI -e NEO4J_USERNAME -e NEO4J_PASSWORD -e NEO4J_DATABASE -e NEO4J_NAMESPACE -e NEO4J_RESPONSE_TOKEN_LIMIT -e NEO4J_READ_TIMEOUT -e NEO4J_READ_ONLY -e NEO4J_SCHEMA_SAMPLE_SIZE ghcr.io/astral-sh/uv:python3.12-bookworm-slim sh -c 'uvx mcp-proxy --host 0.0.0.0 --port 8000 --pass-environment -- uvx mcp-neo4j-cypher==0.5.1'
generated from the record, not tested yet
# Generated by Hub for toolset "my-agent" (2026-10-17T22:05:49+00:00).
# Each package server runs behind a stdio->HTTP bridge and listens on localhost only.
# cp .env.example .env # fill the ${VAR}s
# docker compose up -d && bash smoke.sh
# Remote servers are not here: clients reach them directly (see clients/).
name: mcp-my-agent
services:
neo4j-cypher:
image: ghcr.io/astral-sh/uv:python3.12-bookworm-slim
command:
- sh
- -c
- uvx mcp-proxy --host 0.0.0.0 --port 8000 --pass-environment -- uvx mcp-neo4j-cypher==0.5.1
ports:
- 127.0.0.1:8101:8000
volumes:
- uv-cache:/root/.cache/uv
healthcheck:
test:
- CMD
- python3
- -c
- import urllib.request; urllib.request.urlopen('http://127.0.0.1:8000/status')
interval: 30s
timeout: 5s
retries: 5
start_period: 2m
restart: unless-stopped
environment:
NEO4J_URI: ${NEO4J_URI}
NEO4J_USERNAME: ${NEO4J_USERNAME}
NEO4J_PASSWORD: ${NEO4J_PASSWORD}
NEO4J_DATABASE: ${NEO4J_DATABASE}
NEO4J_NAMESPACE: ${NEO4J_NAMESPACE}
NEO4J_RESPONSE_TOKEN_LIMIT: ${NEO4J_RESPONSE_TOKEN_LIMIT}
NEO4J_READ_TIMEOUT: ${NEO4J_READ_TIMEOUT}
NEO4J_READ_ONLY: ${NEO4J_READ_ONLY}
NEO4J_SCHEMA_SAMPLE_SIZE: ${NEO4J_SCHEMA_SAMPLE_SIZE}
volumes:
npm-cache: {}
uv-cache: {}
generated from the record, not tested yet
# Generated by Hub for toolset "my-agent" (2026-10-17T22:05:49+00:00).
# kubectl create namespace mcp
# kubectl -n mcp create secret generic mcp-credentials --from-env-file=.env
# kubectl apply -f kubernetes.yaml
# Services are cluster-internal: <name>.mcp.svc.cluster.local:8000/mcp. Put an ingress
# with auth in front before exposing any of them.
apiVersion: v1
kind: Namespace
metadata:
name: mcp
---
apiVersion: apps/v1
kind: Deployment
metadata:
name: neo4j-cypher
namespace: mcp
labels: &id001
app: neo4j-cypher
spec:
replicas: 1
selector:
matchLabels: *id001
template:
metadata:
labels: *id001
spec:
containers:
- name: neo4j-cypher
image: ghcr.io/astral-sh/uv:python3.12-bookworm-slim
ports:
- containerPort: 8000
name: http
env:
- name: NEO4J_URI
valueFrom:
secretKeyRef:
name: mcp-credentials
key: NEO4J_URI
- name: NEO4J_USERNAME
valueFrom:
secretKeyRef:
name: mcp-credentials
key: NEO4J_USERNAME
- name: NEO4J_PASSWORD
valueFrom:
secretKeyRef:
name: mcp-credentials
key: NEO4J_PASSWORD
- name: NEO4J_DATABASE
valueFrom:
secretKeyRef:
name: mcp-credentials
key: NEO4J_DATABASE
- name: NEO4J_NAMESPACE
valueFrom:
secretKeyRef:
name: mcp-credentials
key: NEO4J_NAMESPACE
- name: NEO4J_RESPONSE_TOKEN_LIMIT
valueFrom:
secretKeyRef:
name: mcp-credentials
key: NEO4J_RESPONSE_TOKEN_LIMIT
- name: NEO4J_READ_TIMEOUT
valueFrom:
secretKeyRef:
name: mcp-credentials
key: NEO4J_READ_TIMEOUT
- name: NEO4J_READ_ONLY
valueFrom:
secretKeyRef:
name: mcp-credentials
key: NEO4J_READ_ONLY
- name: NEO4J_SCHEMA_SAMPLE_SIZE
valueFrom:
secretKeyRef:
name: mcp-credentials
key: NEO4J_SCHEMA_SAMPLE_SIZE
command:
- sh
- -c
- uvx mcp-proxy --host 0.0.0.0 --port 8000 --pass-environment -- uvx mcp-neo4j-cypher==0.5.1
readinessProbe:
httpGet:
path: /status
port: http
initialDelaySeconds: 10
---
apiVersion: v1
kind: Service
metadata:
name: neo4j-cypher
namespace: mcp
spec:
selector:
app: neo4j-cypher
ports:
- port: 8000
targetPort: http
name: http
generated from the record, not tested yet
# Generated by Hub for toolset "my-agent" (2026-10-17T22:05:49+00:00).
# Credentials come from the Secret 'mcp-credentials' (kubectl create secret generic ... --from-env-file=.env).
# Each server under `servers` is one Deployment + Service; the keys after it configure
# upstream charts a worker verified.
servers:
neo4j-cypher:
enabled: true
replicas: 1
port: 8000
path: /mcp
container:
name: neo4j-cypher
image: ghcr.io/astral-sh/uv:python3.12-bookworm-slim
ports:
- containerPort: 8000
name: http
env:
- name: NEO4J_URI
valueFrom:
secretKeyRef:
name: mcp-credentials
key: NEO4J_URI
- name: NEO4J_USERNAME
valueFrom:
secretKeyRef:
name: mcp-credentials
key: NEO4J_USERNAME
- name: NEO4J_PASSWORD
valueFrom:
secretKeyRef:
name: mcp-credentials
key: NEO4J_PASSWORD
- name: NEO4J_DATABASE
valueFrom:
secretKeyRef:
name: mcp-credentials
key: NEO4J_DATABASE
- name: NEO4J_NAMESPACE
valueFrom:
secretKeyRef:
name: mcp-credentials
key: NEO4J_NAMESPACE
- name: NEO4J_RESPONSE_TOKEN_LIMIT
valueFrom:
secretKeyRef:
name: mcp-credentials
key: NEO4J_RESPONSE_TOKEN_LIMIT
- name: NEO4J_READ_TIMEOUT
valueFrom:
secretKeyRef:
name: mcp-credentials
key: NEO4J_READ_TIMEOUT
- name: NEO4J_READ_ONLY
valueFrom:
secretKeyRef:
name: mcp-credentials
key: NEO4J_READ_ONLY
- name: NEO4J_SCHEMA_SAMPLE_SIZE
valueFrom:
secretKeyRef:
name: mcp-credentials
key: NEO4J_SCHEMA_SAMPLE_SIZE
command:
- sh
- -c
- uvx mcp-proxy --host 0.0.0.0 --port 8000 --pass-environment -- uvx mcp-neo4j-cypher==0.5.1
readinessProbe:
httpGet:
path: /status
port: http
initialDelaySeconds: 10
# helm install my-agent helm/my-agent -n mcp
in the cloud
one click: the provider's deploy form opens filled in, in your own account- koyeb
-
The form opens with CHANGE_ME for each value you supply: NEO4J_URI, NEO4J_USERNAME, NEO4J_PASSWORD, NEO4J_DATABASE, NEO4J_NAMESPACE, NEO4J_RESPONSE_TOKEN_LIMIT, NEO4J_READ_TIMEOUT, NEO4J_READ_ONLY, NEO4J_SCHEMA_SAMPLE_SIZE. Fill them in before you deploy.
Clients connect to the service's https://…koyeb.app address plus /mcp.
- azure
-
A Container Apps environment with one app per server, each with HTTPS ingress and one replica. The portal asks for each value you supply as a secure parameter; the deployment's outputs list the endpoints.
connect to it
copy what your client needsuvx mcp-neo4j-cypher==0.5.1 # env: NEO4J_URI, NEO4J_USERNAME, NEO4J_PASSWORD, NEO4J_DATABASE, NEO4J_NAMESPACE, NEO4J_RESPONSE_TOKEN_LIMIT, NEO4J_READ_TIMEOUT, NEO4J_READ_ONLY, NEO4J_SCHEMA_SAMPLE_SIZE
{
"mcpServers": {
"neo4j-cypher": {
"command": "uvx",
"args": [
"mcp-neo4j-cypher==0.5.1"
],
"env": {
"NEO4J_URI": "${NEO4J_URI}",
"NEO4J_USERNAME": "${NEO4J_USERNAME}",
"NEO4J_PASSWORD": "${NEO4J_PASSWORD}",
"NEO4J_DATABASE": "${NEO4J_DATABASE}",
"NEO4J_NAMESPACE": "${NEO4J_NAMESPACE}",
"NEO4J_RESPONSE_TOKEN_LIMIT": "${NEO4J_RESPONSE_TOKEN_LIMIT}",
"NEO4J_READ_TIMEOUT": "${NEO4J_READ_TIMEOUT}",
"NEO4J_READ_ONLY": "${NEO4J_READ_ONLY}",
"NEO4J_SCHEMA_SAMPLE_SIZE": "${NEO4J_SCHEMA_SAMPLE_SIZE}"
}
}
}
}
#!/usr/bin/env bash
# Registers every server with Claude Code (run once; `claude mcp list` to check).
set -euo pipefail
set -a; [ -f .env ] && source .env; set +a
claude mcp add neo4j-cypher -e "NEO4J_URI=${NEO4J_URI}" -e "NEO4J_USERNAME=${NEO4J_USERNAME}" -e "NEO4J_PASSWORD=${NEO4J_PASSWORD}" -e "NEO4J_DATABASE=${NEO4J_DATABASE}" -e "NEO4J_NAMESPACE=${NEO4J_NAMESPACE}" -e "NEO4J_RESPONSE_TOKEN_LIMIT=${NEO4J_RESPONSE_TOKEN_LIMIT}" -e "NEO4J_READ_TIMEOUT=${NEO4J_READ_TIMEOUT}" -e "NEO4J_READ_ONLY=${NEO4J_READ_ONLY}" -e "NEO4J_SCHEMA_SAMPLE_SIZE=${NEO4J_SCHEMA_SAMPLE_SIZE}" -- uvx mcp-neo4j-cypher==0.5.1
{
"mcpServers": {
"neo4j-cypher": {
"command": "uvx",
"args": [
"mcp-neo4j-cypher==0.5.1"
],
"env": {
"NEO4J_URI": "${NEO4J_URI}",
"NEO4J_USERNAME": "${NEO4J_USERNAME}",
"NEO4J_PASSWORD": "${NEO4J_PASSWORD}",
"NEO4J_DATABASE": "${NEO4J_DATABASE}",
"NEO4J_NAMESPACE": "${NEO4J_NAMESPACE}",
"NEO4J_RESPONSE_TOKEN_LIMIT": "${NEO4J_RESPONSE_TOKEN_LIMIT}",
"NEO4J_READ_TIMEOUT": "${NEO4J_READ_TIMEOUT}",
"NEO4J_READ_ONLY": "${NEO4J_READ_ONLY}",
"NEO4J_SCHEMA_SAMPLE_SIZE": "${NEO4J_SCHEMA_SAMPLE_SIZE}"
}
}
}
}
{
"servers": {
"neo4j-cypher": {
"type": "stdio",
"command": "uvx",
"args": [
"mcp-neo4j-cypher==0.5.1"
],
"env": {
"NEO4J_URI": "${NEO4J_URI}",
"NEO4J_USERNAME": "${NEO4J_USERNAME}",
"NEO4J_PASSWORD": "${NEO4J_PASSWORD}",
"NEO4J_DATABASE": "${NEO4J_DATABASE}",
"NEO4J_NAMESPACE": "${NEO4J_NAMESPACE}",
"NEO4J_RESPONSE_TOKEN_LIMIT": "${NEO4J_RESPONSE_TOKEN_LIMIT}",
"NEO4J_READ_TIMEOUT": "${NEO4J_READ_TIMEOUT}",
"NEO4J_READ_ONLY": "${NEO4J_READ_ONLY}",
"NEO4J_SCHEMA_SAMPLE_SIZE": "${NEO4J_SCHEMA_SAMPLE_SIZE}"
}
}
}
}
name: my-agent target: local servers: - hub: io.github.neo4j-contrib/mcp-neo4j-cypher
- not probed yet: tools unpinned, ingest lists them
tools
Probe result: faileddocker: the container exited: ^ | File "<path>", line 306, in send_request | raise McpError(response_or_error.error) | mcp.shared.exceptions.McpError: Connection closed +------------------------------------; baremetal: MCPError: Connection closed; server stderr: …ges in 183ms Traceback (most recent call last): File "<path>", line 6, in <module> from mcp_neo4j_cypher import main File "<path>", line 4, in <module> from . import server File "<path>", line 8, in <module> from fastmcp.tools.tool imp…
runs · 1
the latest tests of this entry by the hub and its workers, newest first| date | worker | method | status | sandbox | reason |
|---|---|---|---|---|---|
| 2026-10-17 12:29 | local-mac-vm | docker | failed | gvisor | docker: the container exited: ^ | File "<path>", line 306, in send_request | raise McpError(response_or_error.error) | mcp.shared.exceptions.McpError: Connectio… |