I use the validate API and get the following response content:
"{\"error\": null}"

The problem is that it is a string, but it should be a json.

Complete response:

HTTP/1.1 200 OK
Content-Type: application/json; charset=utf-8
Date: Wed, 09 Aug 2023 09:07:39 GMT
Content-Length: 20
Connection: close

"{\"error\": null}"

In my python code I need to do the following (requests is used):

    response_data = response.json()

    return json.loads(response_data)  # Again a json loads

Note that this issue exists in ICL and WIRE, not in ACH.

Issue in WIRE