Filter id is 0, name is null, there is a _filter_id under criteria.

{
    "filters": [
        {
            "id": 0,
            "name": null,
            "owner": {
                "id": 0
            },
            "public": false,
            "project": {
                "id": 0,
                "name": "All Projects"
            },
            "criteria": {
                "_filter_id": 12976,
                "status": [
                    {
                        "id": 10,
                        "name": "new",
                        "label": "new",
                        "color": "#fcbdbd"
                    },
                    {
                        "id": 20,
                        "name": "feedback",
                        "label": "feedback",
                        "color": "#e3b7eb"
                    },
                    {
                        "id": 30,
                        "name": "acknowledged",
                        "label": "acknowledged",
                        "color": "#ffcd85"
                    },
                    {
                        "id": 40,
                        "name": "confirmed",
                        "label": "confirmed",
                        "color": "#fff494"
                    },
                    {
                        "id": 50,
                        "name": "assigned",
                        "label": "assigned",
                        "color": "#c2dfff"
                    }
                ],
                "target_version": [
                    null
                ]
            },
            "url": "http://localhost/mantisbt/search.php?project_id=0&status%5B%5D=10&status%5B%5D=20&status%5B%5D=30&status%5B%5D=40&status%5B%5D=50&sticky=on&target_version=1.3.x&sort=last_updated&dir=DESC&per_page=50&hide_status=-2&match_type=0"
        }
    ]
}