curl --request GET \
  --url https://{tenant}/api/apis/oas/{apiId}/versions \
  --header 'Authorization: Bearer <token>'

{
  "apis": [
    {
      "expirationDate": "2024-11-30 12:00",
      "id": "5b633de8673e40e44bc88b6b248f0937",
      "internal": false,
      "isDefaultVersion": true,
      "name": "user",
      "versionName": "Default"
    },
    {
      "expirationDate": "2024-11-30 12:00",
      "id": "0fec4eb890cf4b8c5cb6fc011456c315",
      "internal": false,
      "isDefaultVersion": false,
      "name": "user",
      "versionName": "v2"
    }
  ],
  "pages": 1
}