io.github.neo4j-labs/neo4j-mcp-canary
Officialby neo4j-labs
Server Configuration
Describes the environment variables required to run the server.
| Name | Required | Description | Default |
|---|---|---|---|
| NEO4J_URI | No | Neo4j connection URI (required) | |
| NEO4J_DATABASE | No | Database name | neo4j |
| NEO4J_PASSWORD | No | Database password (required in STDIO mode; must be unset in HTTP mode) | |
| NEO4J_USERNAME | No | Database username (required in STDIO mode; must be unset in HTTP mode) | |
| NEO4J_LOG_LEVEL | No | Log level: debug, info, notice, warning, error, critical, alert, emergency | info |
| NEO4J_READ_ONLY | No | When true, write-cypher tool is not registered | false |
| NEO4J_TELEMETRY | No | Enable/disable anonymous telemetry | true |
| NEO4J_LOG_FORMAT | No | Log format: text or json | text |
| NEO4J_MCP_HTTP_PORT | No | HTTP server port (default 443 with TLS, 80 without) | |
| NEO4J_CYPHER_TIMEOUT | No | Execution timeout in seconds; 0 disables | 30 |
| NEO4J_TRANSPORT_MODE | No | Transport mode: stdio or http | stdio |
| NEO4J_CYPHER_MAX_ROWS | No | Per-call row cap on read-cypher/write-cypher; 0 disables | 1000 |
| NEO4J_CYPHER_MAX_BYTES | No | Per-call byte cap on response envelope; 0 disables | 900000 |
| NEO4J_SCHEMA_SAMPLE_SIZE | No | Nodes per label APOC examines when inferring schema | 1000 |
| NEO4J_MCP_HTTP_TLS_ENABLED | No | Enable TLS/HTTPS | false |
| NEO4J_HTTP_AUTH_HEADER_NAME | No | Header name to read credentials from | Authorization |
| NEO4J_MCP_HTTP_TLS_KEY_FILE | No | Path to TLS private key (required when TLS enabled) | |
| NEO4J_MCP_HTTP_TLS_CERT_FILE | No | Path to TLS certificate (required when TLS enabled) | |
| NEO4J_CYPHER_MAX_ESTIMATED_ROWS | No | EXPLAIN-time planner estimate above which read-cypher refuses a query; 0 disables | 1000000 |
| NEO4J_HTTP_ALLOW_UNAUTHENTICATED_PING | No | Allow unauthenticated ping health checks | true |
| NEO4J_HTTP_ALLOW_UNAUTHENTICATED_INITIALIZE | No | Allow unauthenticated initialize | true |
| NEO4J_HTTP_ALLOW_UNAUTHENTICATED_TOOLS_LIST | No | Allow unauthenticated tool listing | true |
| NEO4J_HTTP_ALLOW_UNAUTHENTICATED_NOTIFICATIONS_INITIALIZE | No | Allow unauthenticated notifications/initialize | true |
Capabilities
Server capabilities have not been inspected yet.
Tools
Functions exposed to the LLM to take actions
| Name | Description |
|---|---|
No tools | |
Prompts
Interactive templates invoked by user choice
| Name | Description |
|---|---|
No prompts | |
Resources
Contextual data attached and managed by the client
| Name | Description |
|---|---|
No resources | |
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