curl --request GET \
  --url https://{host}/v1/shipping-countries \
  --header 'Authorization: Bearer <token>'

const options = {method: 'GET', headers: {Authorization: 'Bearer <token>'}};

fetch('https://{host}/v1/shipping-countries', options)
  .then(res => res.json())
  .then(res => console.log(res))
  .catch(err => console.error(err));

<?php

$curl = curl_init();

curl_setopt_array($curl, [
  CURLOPT_URL => "https://{host}/v1/shipping-countries",
  CURLOPT_RETURNTRANSFER => true,
  CURLOPT_ENCODING => "",
  CURLOPT_MAXREDIRS => 10,
  CURLOPT_TIMEOUT => 30,
  CURLOPT_HTTP_VERSION => CURL_HTTP_VERSION_1_1,
  CURLOPT_CUSTOMREQUEST => "GET",
  CURLOPT_HTTPHEADER => [
    "Authorization: Bearer <token>"
  ],
]);

$response = curl_exec($curl);
$err = curl_error($curl);

curl_close($curl);

if ($err) {
  echo "cURL Error #:" . $err;
} else {
  echo $response;
}

import requests

url = "https://{host}/v1/shipping-countries"

headers = {"Authorization": "Bearer <token>"}

response = requests.get(url, headers=headers)

print(response.text)

{
  "jsonapi": {
    "version": "1.0"
  },
  "data": [
    {
      "type": "shipping-countries",
      "id": "AT",
      "attributes": {
        "importDuties": false
      }
    },
    {
      "type": "shipping-countries",
      "id": "CH",
      "attributes": {
        "importDuties": true
      }
    },
    {
      "type": "shipping-countries",
      "id": "IE",
      "attributes": {
        "importDuties": false
      }
    },
    {
      "type": "shipping-countries",
      "id": "NL",
      "attributes": {
        "importDuties": false
      }
    }
  ],
  "meta": {
    "total": 4,
    "quickPicks": {
      "en": [
        "IE",
        "CH"
      ],
      "nl": [
        "NL",
        "AT"
      ]
    },
    "defaultCountry": {
      "en": "IE",
      "nl": "NL"
    }
  }
}

{
  "errors": [
    {
      "status": "404",
      "code": "watch_reserved",
      "title": "Not Found",
      "detail": "<string>",
      "meta": {},
      "source": {
        "pointer": "/data/attributes/reference",
        "parameter": "<string>"
      }
    }
  ],
  "jsonapi": {
    "version": "1.0"
  }
}