wp option add
wp option add <key> [<value>] [--format=<format>] [--autoload=<autoload>]
Examples
# Create an option by reading a JSON file.
$ wp option add my_option --format=json < config.json
Success: Added 'my_option' option.
wp option add <key> [<value>] [--format=<format>] [--autoload=<autoload>]