curl --request GET \
  --url https://api.xplenty.com/{account_id}/api/connection_groups/search \
  --header 'Accept: <accept>' \
  --header 'Authorization: Basic <encoded-value>'

[
  {
    "id": 123,
    "name": "<string>",
    "description": "<string>",
    "account_id": 123,
    "modified_by": {
      "name": "<string>",
      "email": "<string>"
    },
    "connections": [
      {
        "id": 123,
        "name": "<string>",
        "type": "<string>"
      }
    ],
    "created_at": "2023-11-07T05:31:56Z",
    "updated_at": "2023-11-07T05:31:56Z"
  }
]