You are looking at the HTML representation of the RAW 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 RAW format, set format=raw.
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",
                "*": "",
                "subpages": "",
                "content": ""
            },
            "1": {
                "id": 1,
                "case": "first-letter",
                "*": "Talk",
                "subpages": "",
                "canonical": "Talk"
            },
            "2": {
                "id": 2,
                "case": "first-letter",
                "*": "User",
                "subpages": "",
                "canonical": "User",
                "content": ""
            },
            "3": {
                "id": 3,
                "case": "first-letter",
                "*": "User talk",
                "subpages": "",
                "canonical": "User talk"
            },
            "4": {
                "id": 4,
                "case": "first-letter",
                "*": "EntropiaPlanets Wiki",
                "subpages": "",
                "canonical": "Project"
            },
            "5": {
                "id": 5,
                "case": "first-letter",
                "*": "EntropiaPlanets Wiki talk",
                "subpages": "",
                "canonical": "Project talk"
            },
            "6": {
                "id": 6,
                "case": "first-letter",
                "*": "File",
                "subpages": "",
                "canonical": "File",
                "content": ""
            },
            "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",
                "subpages": "",
                "canonical": "Template"
            },
            "11": {
                "id": 11,
                "case": "first-letter",
                "*": "Template talk",
                "subpages": "",
                "canonical": "Template talk"
            },
            "12": {
                "id": 12,
                "case": "first-letter",
                "*": "Help",
                "subpages": "",
                "canonical": "Help",
                "content": ""
            },
            "13": {
                "id": 13,
                "case": "first-letter",
                "*": "Help talk",
                "subpages": "",
                "canonical": "Help talk"
            },
            "14": {
                "id": 14,
                "case": "first-letter",
                "*": "Category",
                "subpages": "",
                "canonical": "Category",
                "content": ""
            },
            "15": {
                "id": 15,
                "case": "first-letter",
                "*": "Category talk",
                "subpages": "",
                "canonical": "Category talk"
            },
            "100": {
                "id": 100,
                "case": "first-letter",
                "*": "Mission",
                "subpages": "",
                "canonical": "Mission",
                "content": ""
            },
            "101": {
                "id": 101,
                "case": "first-letter",
                "*": "Mission talk",
                "subpages": "",
                "canonical": "Mission talk"
            },
            "102": {
                "id": 102,
                "case": "first-letter",
                "*": "Teleporter",
                "subpages": "",
                "canonical": "Teleporter",
                "content": ""
            },
            "103": {
                "id": 103,
                "case": "first-letter",
                "*": "Teleporter talk",
                "subpages": "",
                "canonical": "Teleporter talk"
            },
            "104": {
                "id": 104,
                "case": "first-letter",
                "*": "Event",
                "subpages": "",
                "canonical": "Event",
                "content": ""
            },
            "105": {
                "id": 105,
                "case": "first-letter",
                "*": "Event talk",
                "subpages": "",
                "canonical": "Event talk"
            },
            "106": {
                "id": 106,
                "case": "first-letter",
                "*": "Item",
                "subpages": "",
                "canonical": "Item",
                "content": ""
            },
            "107": {
                "id": 107,
                "case": "first-letter",
                "*": "Item talk",
                "subpages": "",
                "canonical": "Item talk"
            },
            "110": {
                "id": 110,
                "case": "first-letter",
                "*": "Weapon",
                "subpages": "",
                "canonical": "Weapon",
                "content": ""
            },
            "111": {
                "id": 111,
                "case": "first-letter",
                "*": "Weapon talk",
                "subpages": "",
                "canonical": "Weapon talk"
            },
            "112": {
                "id": 112,
                "case": "first-letter",
                "*": "Armor",
                "subpages": "",
                "canonical": "Armor",
                "content": ""
            },
            "113": {
                "id": 113,
                "case": "first-letter",
                "*": "Armor talk",
                "subpages": "",
                "canonical": "Armor talk"
            },
            "116": {
                "id": 116,
                "case": "first-letter",
                "*": "Skill",
                "subpages": "",
                "canonical": "Skill",
                "content": ""
            },
            "117": {
                "id": 117,
                "case": "first-letter",
                "*": "Skill talk",
                "subpages": "",
                "canonical": "Skill talk"
            },
            "118": {
                "id": 118,
                "case": "first-letter",
                "*": "Creature",
                "subpages": "",
                "canonical": "Creature",
                "content": ""
            },
            "119": {
                "id": 119,
                "case": "first-letter",
                "*": "Creature talk",
                "subpages": "",
                "canonical": "Creature talk"
            },
            "120": {
                "id": 120,
                "case": "first-letter",
                "*": "Portal",
                "subpages": "",
                "canonical": "Portal",
                "content": ""
            },
            "121": {
                "id": 121,
                "case": "first-letter",
                "*": "Portal talk",
                "subpages": "",
                "canonical": "Portal talk"
            },
            "126": {
                "id": 126,
                "case": "first-letter",
                "*": "Avatar",
                "subpages": "",
                "canonical": "Avatar",
                "content": ""
            },
            "127": {
                "id": 127,
                "case": "first-letter",
                "*": "Avatar talk",
                "subpages": "",
                "canonical": "Avatar talk"
            },
            "128": {
                "id": 128,
                "case": "first-letter",
                "*": "Society",
                "subpages": "",
                "canonical": "Society",
                "content": ""
            },
            "129": {
                "id": 129,
                "case": "first-letter",
                "*": "Society talk",
                "subpages": "",
                "canonical": "Society talk"
            },
            "134": {
                "id": 134,
                "case": "first-letter",
                "*": "News",
                "subpages": "",
                "canonical": "News",
                "content": ""
            },
            "135": {
                "id": 135,
                "case": "first-letter",
                "*": "News talk",
                "subpages": "",
                "canonical": "News talk"
            },
            "136": {
                "id": 136,
                "case": "first-letter",
                "*": "Achievement",
                "subpages": "",
                "canonical": "Achievement",
                "content": ""
            },
            "137": {
                "id": 137,
                "case": "first-letter",
                "*": "Achievement talk",
                "subpages": "",
                "canonical": "Achievement talk"
            },
            "140": {
                "id": 140,
                "case": "first-letter",
                "*": "Property",
                "subpages": "",
                "canonical": "Property"
            },
            "141": {
                "id": 141,
                "case": "first-letter",
                "*": "Property talk",
                "subpages": "",
                "canonical": "Property talk"
            },
            "142": {
                "id": 142,
                "case": "first-letter",
                "*": "Type",
                "subpages": "",
                "canonical": "Type"
            },
            "143": {
                "id": 143,
                "case": "first-letter",
                "*": "Type talk",
                "subpages": "",
                "canonical": "Type talk"
            },
            "144": {
                "id": 144,
                "case": "first-letter",
                "*": "Form",
                "subpages": "",
                "canonical": "Form"
            },
            "145": {
                "id": 145,
                "case": "first-letter",
                "*": "Form talk",
                "subpages": "",
                "canonical": "Form talk"
            },
            "146": {
                "id": 146,
                "case": "first-letter",
                "*": "Concept",
                "subpages": "",
                "canonical": "Concept"
            },
            "147": {
                "id": 147,
                "case": "first-letter",
                "*": "Concept talk",
                "subpages": "",
                "canonical": "Concept talk"
            },
            "170": {
                "id": 170,
                "case": "first-letter",
                "*": "Filter",
                "subpages": "",
                "canonical": "Filter"
            },
            "171": {
                "id": 171,
                "case": "first-letter",
                "*": "Filter talk",
                "subpages": "",
                "canonical": "Filter talk"
            },
            "274": {
                "id": 274,
                "case": "first-letter",
                "*": "Widget",
                "canonical": "Widget"
            },
            "275": {
                "id": 275,
                "case": "first-letter",
                "*": "Widget talk",
                "subpages": "",
                "canonical": "Widget talk"
            },
            "420": {
                "id": 420,
                "case": "first-letter",
                "*": "Layer",
                "canonical": "Layer"
            },
            "421": {
                "id": 421,
                "case": "first-letter",
                "*": "Layer talk",
                "canonical": "Layer talk"
            },
            "_element": "ns"
        }
    }
}