Price Feeds API

curl -X GET "https://api.yanipay.com/api/defi/prices"

{
  "prices": [
    {
      "symbol": "YANI",
      "name": "YaniCoin",
      "price": "0.5025",
      "priceUsd": "0.5025",
      "priceEur": "0.4650",
      "change24h": "+2.45",
      "change7d": "+8.12",
      "volume24h": "12500000.00",
      "marketCap": "3517500000.00",
      "circulatingSupply": "7000000000",
      "high24h": "0.5150",
      "low24h": "0.4850",
      "lastUpdated": "2026-01-25T10:30:00Z"
    },
    {
      "symbol": "ETH",
      "name": "Ethereum",
      "price": "3250.50",
      "priceUsd": "3250.50",
      "priceEur": "3006.71",
      "change24h": "+1.25",
      "change7d": "+5.80",
      "volume24h": "15000000000.00",
      "marketCap": "390000000000.00",
      "circulatingSupply": "120000000",
      "high24h": "3300.00",
      "low24h": "3180.00",
      "lastUpdated": "2026-01-25T10:30:00Z"
    }
  ],
  "lastUpdated": "2026-01-25T10:30:00Z"
}

curl -X GET "https://api.yanipay.com/api/defi/prices/YANI"

{
  "symbol": "YANI",
  "name": "YaniCoin",
  "price": "0.5025",
  "priceUsd": "0.5025",
  "priceEur": "0.4650",
  "priceBtc": "0.00000502",
  "priceEth": "0.000155",
  "change1h": "+0.15",
  "change24h": "+2.45",
  "change7d": "+8.12",
  "change30d": "+15.50",
  "volume24h": "12500000.00",
  "volumeChange24h": "+5.20",
  "marketCap": "3517500000.00",
  "fullyDilutedValuation": "3517500000.00",
  "circulatingSupply": "7000000000",
  "totalSupply": "7000000000",
  "maxSupply": "7000000000",
  "high24h": "0.5150",
  "low24h": "0.4850",
  "allTimeHigh": "0.8500",
  "allTimeHighDate": "2025-12-15T00:00:00Z",
  "allTimeLow": "0.1200",
  "allTimeLowDate": "2025-06-01T00:00:00Z",
  "lastUpdated": "2026-01-25T10:30:00Z"
}

curl -X GET "https://api.yanipay.com/api/defi/prices/YANI/history?interval=1h&from=2026-01-20&to=2026-01-25"

{
  "symbol": "YANI",
  "interval": "1h",
  "from": "2026-01-20T00:00:00Z",
  "to": "2026-01-25T10:00:00Z",
  "data": [
    {
      "timestamp": "2026-01-20T00:00:00Z",
      "open": "0.4500",
      "high": "0.4550",
      "low": "0.4480",
      "close": "0.4525",
      "volume": "500000.00"
    },
    {
      "timestamp": "2026-01-20T01:00:00Z",
      "open": "0.4525",
      "high": "0.4600",
      "low": "0.4510",
      "close": "0.4580",
      "volume": "650000.00"
    }
  ]
}

1
// Connect to WebSocket
2
const ws = new WebSocket('wss://api.yanipay.com/ws/prices');
3
4
// Subscribe to specific symbols
5
ws.onopen = () => {
6
  ws.send(JSON.stringify({
7
    action: 'subscribe',
8
    symbols: ['YANI', 'ETH', 'BTC']
9
  }));
10
};
11
12
// Handle price updates
13
ws.onmessage = (event) => {
14
  const data = JSON.parse(event.data);
15
16
  if (data.type === 'price_update') {
17
    console.log(`${data.symbol}: $${data.price}`);
18
    // Update your UI here
19
  }
20
};
21
22
// Unsubscribe when done
23
ws.send(JSON.stringify({
24
  action: 'unsubscribe',
25
  symbols: ['YANI']
26
}));

// Price update message
interface PriceUpdate {
  type: 'price_update';
  symbol: string;
  price: string;
  change24h: string;
  volume24h: string;
  timestamp: string;
}

// Subscription confirmation
interface SubscriptionConfirm {
  type: 'subscribed';
  symbols: string[];
}

// Error message
interface ErrorMessage {
  type: 'error';
  code: string;
  message: string;
}

1
export interface AssetPrice {
2
  symbol: string;
3
  name: string;
4
  price: string;
5
  priceUsd: string;
6
  priceEur: string;
7
  change24h: string;
8
  change7d: string;
9
  volume24h: string;
10
  marketCap: string;
11
  circulatingSupply: string;
12
  high24h: string;
13
  low24h: string;
14
  lastUpdated: string;
15
}
16
17
export interface DetailedAssetPrice extends AssetPrice {
18
  priceBtc: string;
19
  priceEth: string;
20
  change1h: string;
21
  change30d: string;
22
  volumeChange24h: string;
23
  fullyDilutedValuation: string;
24
  totalSupply: string;
25
  maxSupply: string;
26
  allTimeHigh: string;
27
  allTimeHighDate: string;
28
  allTimeLow: string;
29
  allTimeLowDate: string;
30
}
31
32
export interface PriceCandle {
33
  timestamp: string;
34
  open: string;
35
  high: string;
36
  low: string;
37
  close: string;
38
  volume: string;
39
}
40
41
export interface PriceHistory {
42
  symbol: string;
43
  interval: '1m' | '5m' | '15m' | '1h' | '4h' | '1d';
44
  from: string;
45
  to: string;
46
  data: PriceCandle[];
47
}
48
49
export interface PricesResponse {
50
  prices: AssetPrice[];
51
  lastUpdated: string;
52
}
53
54
export interface HistoryParams {
55
  interval: '1m' | '5m' | '15m' | '1h' | '4h' | '1d';
56
  from: string;
57
  to: string;
58
}