curl --request GET \
  --url https://{your-subdomain}.neetodesk.com/api/external/v2/customers/{customer_id} \
  --header 'X-Api-Key: <x-api-key>'

const options = {method: 'GET', headers: {'X-Api-Key': '<x-api-key>'}};

fetch('https://{your-subdomain}.neetodesk.com/api/external/v2/customers/{customer_id}', options)
  .then(res => res.json())
  .then(res => console.log(res))
  .catch(err => console.error(err));

import requests

url = "https://{your-subdomain}.neetodesk.com/api/external/v2/customers/{customer_id}"

headers = {"X-Api-Key": "<x-api-key>"}

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

print(response.text)

{
  "customer": {
    "id": "aaaabbbb-cccc-dddd-eeee-ffff00002222",
    "name": "John Doe",
    "email": "john@example.com",
    "language": "English",
    "time_zone": "Eastern Time (US & Canada)",
    "description": "VIP customer",
    "created_at": "2026-09-01T10:15:30.000Z",
    "updated_at": "2026-09-03T08:42:11.000Z",
    "emails": [
      "john@example.com",
      "john.doe@work.example.com"
    ],
    "phone_numbers": [
      "+1234567890"
    ],
    "company": {
      "id": "aaaabbbb-cccc-dddd-eeee-ffff00001111",
      "name": "Acme Inc."
    }
  }
}

{
  "error": "Customer not found"
}