Invalid API Response

[DanGarion]

Hey before I dig too far into this, when try to call any of the API implementations I get

{
    "error": "Invalid API"
}

This happens when I do a POST (using postman within my network). To any of the following

http://192.168.1.7:42010/apis/audioscrobbler_legacy
http://192.168.1.7:42010/apis/audioscrobbler
http://192.168.1.7:42010/apis/listenbrainz

I should get a different response than just invalid API, right?

I can browse to /api_explorer perfect fine in my browser.

I can get an different response going to http://192.168.1.7:42010/apis/mlj_1/newscrobble which makes me think that API is functional

{
    "status": "failure",
    "error": {
        "type": "authentication_fail",
        "desc": "Invalid or missing authentication"
    }
}

Lastly if I do a POST with http://192.168.1.7:42010/apis/mlj_1/newscrobble?key=APIKEY
I get the response I would expect to get when I call the other APIs.

{
    "status": "failure",
    "error": {
        "type": "missing_scrobble_data",
        "value": [
            "track_artists",
            "track_title"
        ],
        "desc": "The scrobble is missing needed parameters."
    }
}

Where can I look to see why this is failing with access to the other APIs?

[DanGarion]

It seems to me this issue is just when trying to use Postman, when I use Panoscrobble things work. So I guess nevermind.