curl --location 'https://rest.vvtr.com/v1/kline/historyn?symbols=RB9999&interval=1m&type=14&apiKey=your%20apiKey&historyn=10'{
"code": 200,
"msg": "ok",
"data": [
[
{
"s": "RB9999",
"t": "1776063540",
"p": 1442559,
"o": 3100,
"h": 3101,
"l": 3099,
"c": 3100,
"v": 3245,
"a": 100605000,
"b": "2026-04-13 14:59:00",
"e": "2026-04-13 15:00:00"
},
{
"s": "RB9999",
"t": "1776063480",
"p": 1443353,
"o": 3101,
"h": 3101,
"l": 3099,
"c": 3100,
"v": 2625,
"a": 81379930,
"b": "2026-04-13 14:58:00",
"e": "2026-04-13 14:59:00"
}
]
]
}