You are looking at the HTML representation of the YAML format.
HTML is good for debugging, but is unsuitable for application use.
Specify the format parameter to change the output format.
To see the non HTML representation of the YAML format, set format=yaml.
See the complete documentation, or API help for more information.
{
    "query": {
        "namespaces": {
            "-2": {
                "id": -2,
                "case": "first-letter",
                "*": "Medium",
                "canonical": "Media"
            },
            "-1": {
                "id": -1,
                "case": "first-letter",
                "*": "Spezial",
                "canonical": "Special"
            },
            "0": {
                "id": 0,
                "case": "first-letter",
                "*": "",
                "content": ""
            },
            "1": {
                "id": 1,
                "case": "first-letter",
                "*": "Diskussion",
                "subpages": "",
                "canonical": "Talk"
            },
            "2": {
                "id": 2,
                "case": "first-letter",
                "*": "Kamel",
                "subpages": "",
                "canonical": "User"
            },
            "3": {
                "id": 3,
                "case": "first-letter",
                "*": "Kamel Diskussion",
                "subpages": "",
                "canonical": "User talk"
            },
            "4": {
                "id": 4,
                "case": "first-letter",
                "*": "Kamelopedia",
                "subpages": "",
                "canonical": "Project"
            },
            "5": {
                "id": 5,
                "case": "first-letter",
                "*": "Kamelopedia Diskussion",
                "subpages": "",
                "canonical": "Project talk"
            },
            "6": {
                "id": 6,
                "case": "first-letter",
                "*": "Datei",
                "canonical": "File"
            },
            "7": {
                "id": 7,
                "case": "first-letter",
                "*": "Datei Diskussion",
                "subpages": "",
                "canonical": "File talk"
            },
            "8": {
                "id": 8,
                "case": "first-letter",
                "*": "MediaWiki",
                "subpages": "",
                "canonical": "MediaWiki"
            },
            "9": {
                "id": 9,
                "case": "first-letter",
                "*": "MediaWiki Diskussion",
                "subpages": "",
                "canonical": "MediaWiki talk"
            },
            "10": {
                "id": 10,
                "case": "first-letter",
                "*": "Vorlage",
                "canonical": "Template"
            },
            "11": {
                "id": 11,
                "case": "first-letter",
                "*": "Vorlage Diskussion",
                "subpages": "",
                "canonical": "Template talk"
            },
            "12": {
                "id": 12,
                "case": "first-letter",
                "*": "Hilfe",
                "subpages": "",
                "canonical": "Help"
            },
            "13": {
                "id": 13,
                "case": "first-letter",
                "*": "Hilfe Diskussion",
                "subpages": "",
                "canonical": "Help talk"
            },
            "14": {
                "id": 14,
                "case": "first-letter",
                "*": "Kategorie",
                "canonical": "Category"
            },
            "15": {
                "id": 15,
                "case": "first-letter",
                "*": "Kategorie Diskussion",
                "subpages": "",
                "canonical": "Category talk"
            },
            "100": {
                "id": 100,
                "case": "first-letter",
                "*": "Projekt",
                "canonical": "Projekt"
            },
            "101": {
                "id": 101,
                "case": "first-letter",
                "*": "Projekt Diskussion",
                "canonical": "Projekt Diskussion"
            },
            "102": {
                "id": 102,
                "case": "first-letter",
                "*": "Forum",
                "canonical": "Forum"
            },
            "103": {
                "id": 103,
                "case": "first-letter",
                "*": "Forum Diskussion",
                "canonical": "Forum Diskussion"
            },
            "104": {
                "id": 104,
                "case": "first-letter",
                "*": "Archiv",
                "canonical": "Archiv"
            },
            "105": {
                "id": 105,
                "case": "first-letter",
                "*": "Archiv Diskussion",
                "canonical": "Archiv Diskussion"
            },
            "106": {
                "id": 106,
                "case": "first-letter",
                "*": "Kamelionary",
                "canonical": "Kamelionary"
            },
            "107": {
                "id": 107,
                "case": "first-letter",
                "*": "Kamelionary Diskussion",
                "canonical": "Kamelionary Diskussion"
            },
            "108": {
                "id": 108,
                "case": "first-letter",
                "*": "News",
                "canonical": "News"
            },
            "109": {
                "id": 109,
                "case": "first-letter",
                "*": "News Diskussion",
                "canonical": "News Diskussion"
            },
            "110": {
                "id": 110,
                "case": "first-letter",
                "*": "Commons",
                "canonical": "Commons"
            },
            "111": {
                "id": 111,
                "case": "first-letter",
                "*": "Commons Diskussion",
                "canonical": "Commons Diskussion"
            },
            "112": {
                "id": 112,
                "case": "first-letter",
                "*": "Kamelobooks",
                "canonical": "Kamelobooks"
            },
            "113": {
                "id": 113,
                "case": "first-letter",
                "*": "Kamelobooks Diskussion",
                "canonical": "Kamelobooks Diskussion"
            },
            "114": {
                "id": 114,
                "case": "first-letter",
                "*": "Frage",
                "canonical": "Frage"
            },
            "115": {
                "id": 115,
                "case": "first-letter",
                "*": "Frage Diskussion",
                "canonical": "Frage Diskussion"
            },
            "116": {
                "id": 116,
                "case": "first-letter",
                "*": "Idee",
                "canonical": "Idee"
            },
            "117": {
                "id": 117,
                "case": "first-letter",
                "*": "Idee Diskussion",
                "canonical": "Idee Diskussion"
            },
            "192": {
                "id": 192,
                "case": "first-letter",
                "*": "Attribut",
                "canonical": "Attribut"
            },
            "193": {
                "id": 193,
                "case": "first-letter",
                "*": "Attribut Diskussion",
                "subpages": "",
                "canonical": "Attribut Diskussion"
            },
            "194": {
                "id": 194,
                "case": "first-letter",
                "*": "Type",
                "canonical": "Type"
            },
            "195": {
                "id": 195,
                "case": "first-letter",
                "*": "Type talk",
                "subpages": "",
                "canonical": "Type talk"
            },
            "196": {
                "id": 196,
                "case": "first-letter",
                "*": "Formular",
                "canonical": "Form"
            },
            "197": {
                "id": 197,
                "case": "first-letter",
                "*": "Formular Diskussion",
                "subpages": "",
                "canonical": "Form talk"
            },
            "198": {
                "id": 198,
                "case": "first-letter",
                "*": "Konzept",
                "canonical": "Konzept"
            },
            "199": {
                "id": 199,
                "case": "first-letter",
                "*": "Konzept Diskussion",
                "subpages": "",
                "canonical": "Konzept Diskussion"
            },
            "274": {
                "id": 274,
                "case": "first-letter",
                "*": "Widget",
                "canonical": "Widget"
            },
            "275": {
                "id": 275,
                "case": "first-letter",
                "*": "Widget Diskussion",
                "subpages": "",
                "canonical": "Widget talk"
            }
        }
    }
}