Shippy provides the following feature support for New Zealand Post.
To use New Zealand Post, you'll need to connect to their API.
clientId with the Shippy carrier.clientSecret with the Shippy carrier.use verbb\shippy\carriers\NewZealandPost;
new NewZealandPost([
'isProduction' => false,
'clientId' => '••••••••••••••••',
'clientSecret' => '•••••••••••••••••••••••••••••••••••',
]);