const options = {
  method: 'GET',
  headers: {'x-spree-api-key': '<api-key>', Authorization: 'Bearer <token>'}
};

fetch('http://{defaultHost}/api/v3/admin/customers/{id}/export', options)
  .then(res => res.json())
  .then(res => console.log(res))
  .catch(err => console.error(err));

curl --request GET \
  --url http://{defaultHost}/api/v3/admin/customers/{id}/export \
  --header 'Authorization: Bearer <token>' \
  --header 'x-spree-api-key: <api-key>'

{
  "account": {
    "id": "cust_UkLWZg9DAJ",
    "email": "jane@example.com",
    "first_name": "Jane",
    "last_name": "Doe",
    "phone": null,
    "selected_locale": null,
    "tags": [],
    "metadata": null,
    "internal_note": null,
    "created_at": "2026-01-15T12:00:00Z",
    "anonymized_at": null
  },
  "marketing_consent": {
    "accepts_email_marketing": false,
    "consent_updated_at": "2026-01-15T12:00:00Z",
    "consent_source": "unknown",
    "newsletter_subscriptions": []
  },
  "consent_records": [],
  "addresses": [],
  "orders": [],
  "draft_orders": [],
  "order_groups": [],
  "carts": [],
  "payment_sources": [],
  "connected_logins": [],
  "store_credits": [],
  "gift_cards": [],
  "wishlists": [],
  "custom_fields": [],
  "companies": [],
  "tax_identifiers": [],
  "exported_at": "2026-01-15T12:00:00Z"
}

{
  "error": {
    "code": "record_not_found",
    "message": "Customer not found"
  }
}