GET /crypto/summary/:coin_id
获取代币价格历史的汇总统计：总数据点、覆盖的日期范围和最低/最高/平均美元价格。适用于了解有多少可用历史数据和快速获取统计概览。
curl https://nordapi.ee/api/v1/crypto/summary/bitcoin
{
"data": {
"change_24h_pct": -0.5,
"change_7d_pct": -1.0,
"coin_id": "bitcoin",
"history_endpoint": "/api/v1/crypto/history/bitcoin?days=30",
"last_updated": "2026-08-12T07:57:20Z",
"market_cap_usd": 1278744354988.0,
"name": "Bitcoin",
"ohlc_endpoint": "/api/v1/crypto/ohlc/bitcoin?days=30",
"price_eur": 55223.57041264,
"price_usd": 63728.0,
"symbol": "BTC",
"volume_24h_usd": 21031636966.0
},
"success": true
}