curl --request GET \
  --url https://{projectID}.texterchat.com/server/api/v2/whatsapp/templates/unsubscribed/{accountId} \
  --header 'Authorization: Bearer <token>'

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

fetch('https://{projectID}.texterchat.com/server/api/v2/whatsapp/templates/unsubscribed/{accountId}', options)
  .then(res => res.json())
  .then(res => console.log(res))
  .catch(err => console.error(err));

import requests

url = "https://{projectID}.texterchat.com/server/api/v2/whatsapp/templates/unsubscribed/{accountId}"

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

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

print(response.text)

[
  {
    "title": "Eli Cohen",
    "phone": "+972549431678"
  },
  {
    "phone": "+972534226703"
  },
  {
    "title": "Texter Support",
    "phone": "+972555026806"
  }
]

{
  "error": "<string>"
}

{
  "error": "WhatsApp account 972540202020 not found"
}