# Describes the format for available Z-Wave services add_node: description: Add a new node to the Z-Wave network. fields: secure: description: Add the new node with secure communications. Secure network key must be set, this process will fallback to add_node (unsecure) for unsupported devices. Note that unsecure devices can't directly talk to secure devices. instance_id: description: (Optional) The OZW Instance/Controller to use, defaults to 1. remove_node: description: Remove a node from the Z-Wave network. Will set the controller into exclusion mode. fields: instance_id: description: (Optional) The OZW Instance/Controller to use, defaults to 1.