curl --request GET \
  --url {schemes}://api.upsun.com/organizations/{organization_id}/members \
  --header 'Authorization: Bearer <token>'

{
  "count": 123,
  "items": [
    {
      "id": "3c90c3cc-0d44-4b50-8888-8dd25736052a",
      "organization_id": "<string>",
      "user_id": "3c90c3cc-0d44-4b50-8888-8dd25736052a",
      "permissions": [
        "admin"
      ],
      "level": "admin",
      "owner": true,
      "created_at": "2023-11-07T05:31:56Z",
      "updated_at": "2023-11-07T05:31:56Z",
      "_links": {
        "self": {
          "href": "<string>"
        },
        "update": {
          "href": "<string>",
          "method": "<string>"
        },
        "delete": {
          "href": "<string>",
          "method": "<string>"
        }
      }
    }
  ],
  "_links": {
    "self": {
      "href": "<string>"
    },
    "previous": {
      "href": "<string>"
    },
    "next": {
      "href": "<string>"
    }
  }
}