Configuration reference

neo4j-mcp can be configured with environment variables or command-line flags. When both are set for the same option, the command-line flag takes precedence over the environment variable.

Transport modes

The server supports two transport modes:

  • STDIO (default): Standard input/output mode for desktop clients.

  • HTTP: Stateless, multi-tenant mode for web clients and shared deployments.

Set the transport mode using NEO4J_MCP_TRANSPORT_MODE or --transport-mode.

See STDIO configuration and HTTP configuration for details.