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",
                "*": "Media",
                "canonical": "Media"
            },
            "-1": {
                "id": -1,
                "case": "first-letter",
                "*": "Special",
                "canonical": "Special"
            },
            "0": {
                "id": 0,
                "case": "first-letter",
                "*": "",
                "content": ""
            },
            "1": {
                "id": 1,
                "case": "first-letter",
                "*": "Talk",
                "subpages": "",
                "canonical": "Talk"
            },
            "2": {
                "id": 2,
                "case": "first-letter",
                "*": "User",
                "subpages": "",
                "canonical": "User"
            },
            "3": {
                "id": 3,
                "case": "first-letter",
                "*": "User talk",
                "subpages": "",
                "canonical": "User talk"
            },
            "4": {
                "id": 4,
                "case": "first-letter",
                "*": "Global wiki. Wargaming.net",
                "subpages": "",
                "canonical": "Project"
            },
            "5": {
                "id": 5,
                "case": "first-letter",
                "*": "Global wiki. Wargaming.net talk",
                "subpages": "",
                "canonical": "Project talk"
            },
            "6": {
                "id": 6,
                "case": "first-letter",
                "*": "File",
                "canonical": "File"
            },
            "7": {
                "id": 7,
                "case": "first-letter",
                "*": "File talk",
                "subpages": "",
                "canonical": "File talk"
            },
            "8": {
                "id": 8,
                "case": "first-letter",
                "*": "MediaWiki",
                "subpages": "",
                "canonical": "MediaWiki"
            },
            "9": {
                "id": 9,
                "case": "first-letter",
                "*": "MediaWiki talk",
                "subpages": "",
                "canonical": "MediaWiki talk"
            },
            "10": {
                "id": 10,
                "case": "first-letter",
                "*": "Template",
                "canonical": "Template"
            },
            "11": {
                "id": 11,
                "case": "first-letter",
                "*": "Template talk",
                "subpages": "",
                "canonical": "Template talk"
            },
            "12": {
                "id": 12,
                "case": "first-letter",
                "*": "Help",
                "subpages": "",
                "canonical": "Help"
            },
            "13": {
                "id": 13,
                "case": "first-letter",
                "*": "Help talk",
                "subpages": "",
                "canonical": "Help talk"
            },
            "14": {
                "id": 14,
                "case": "first-letter",
                "*": "Category",
                "canonical": "Category"
            },
            "15": {
                "id": 15,
                "case": "first-letter",
                "*": "Category talk",
                "subpages": "",
                "canonical": "Category talk"
            },
            "10000": {
                "id": 10000,
                "case": "first-letter",
                "*": "Tank",
                "canonical": "Tank",
                "content": ""
            },
            "10001": {
                "id": 10001,
                "case": "first-letter",
                "*": "Tank talk",
                "canonical": "Tank talk"
            },
            "10002": {
                "id": 10002,
                "case": "first-letter",
                "*": "Plane",
                "canonical": "Plane",
                "content": ""
            },
            "10003": {
                "id": 10003,
                "case": "first-letter",
                "*": "Plane talk",
                "canonical": "Plane talk"
            },
            "10004": {
                "id": 10004,
                "case": "first-letter",
                "*": "Ship",
                "canonical": "Ship",
                "content": ""
            },
            "10005": {
                "id": 10005,
                "case": "first-letter",
                "*": "Ship talk",
                "canonical": "Ship talk"
            },
            "10006": {
                "id": 10006,
                "case": "first-letter",
                "*": "Card",
                "canonical": "Card",
                "content": ""
            },
            "10007": {
                "id": 10007,
                "case": "first-letter",
                "*": "Card talk",
                "canonical": "Card talk"
            },
            "10008": {
                "id": 10008,
                "case": "first-letter",
                "*": "Navy",
                "canonical": "Navy",
                "content": ""
            },
            "10009": {
                "id": 10009,
                "case": "first-letter",
                "*": "Navy talk",
                "canonical": "Navy talk"
            },
            "10010": {
                "id": 10010,
                "case": "first-letter",
                "*": "Blitz",
                "canonical": "Blitz",
                "content": ""
            },
            "10011": {
                "id": 10011,
                "case": "first-letter",
                "*": "Blitz talk",
                "canonical": "Blitz talk"
            },
            "10012": {
                "id": 10012,
                "case": "first-letter",
                "*": "XBOX",
                "canonical": "XBOX",
                "content": ""
            },
            "10013": {
                "id": 10013,
                "case": "first-letter",
                "*": "XBOX talk",
                "canonical": "XBOX talk"
            },
            "10014": {
                "id": 10014,
                "case": "first-letter",
                "*": "TWA",
                "canonical": "TWA",
                "content": ""
            },
            "10015": {
                "id": 10015,
                "case": "first-letter",
                "*": "TWA talk",
                "canonical": "TWA talk"
            },
            "10016": {
                "id": 10016,
                "case": "first-letter",
                "*": "Antiquity",
                "canonical": "Antiquity",
                "content": ""
            },
            "10017": {
                "id": 10017,
                "case": "first-letter",
                "*": "Antiquity talk",
                "canonical": "Antiquity talk"
            },
            "10018": {
                "id": 10018,
                "case": "first-letter",
                "*": "Caliber",
                "canonical": "Caliber",
                "content": ""
            },
            "10019": {
                "id": 10019,
                "case": "first-letter",
                "*": "Caliber talk",
                "canonical": "Caliber talk"
            },
            "10020": {
                "id": 10020,
                "case": "first-letter",
                "*": "SpecOps",
                "canonical": "SpecOps",
                "content": ""
            },
            "10021": {
                "id": 10021,
                "case": "first-letter",
                "*": "SpecOps talk",
                "canonical": "SpecOps talk"
            }
        }
    }
}