Web API: CMC Price

The CMC Price API provides endpoints for retrieving cryptocurrency price data from CoinMarketCap integration, including current prices and historical data.

Base URL

/api/cmc-price/

Endpoints

Get Latest Price

GET /api/cmc-price/{coin_type}/

Returns the latest price information for a specific cryptocurrency.

Parameters:

• coin_type (string): The coin identifier (e.g., "bitcoin", "ethereum", "vfx")

Response:

{
  "coin_type": "bitcoin",
  "symbol": "BTC",
  "name": "Bitcoin",
  "price_usd": "45000.123456",
  "price_btc": "1.0",
  "market_cap": "850000000000.0",
  "volume_24h": "25000000000.0",
  "percent_change_1h": "0.5",
  "percent_change_24h": "2.3",
  "percent_change_7d": "-1.2",
  "last_updated": "2024-01-01T12:00:00Z",
  "rank": 1
}

Get Price History

GET /api/cmc-price/{coin_type}/history/

Returns historical price data for a specific cryptocurrency.

Parameters:

• coin_type (string): The coin identifier

Query Parameters:

• days (integer): Number of days of history to return (default: 30)
• interval (string): Data interval - "1h", "24h" (default: "24h")

Response:

{
  "coin_type": "bitcoin",
  "symbol": "BTC",
  "name": "Bitcoin",
  "history": [
    {
      "timestamp": "2024-01-01T00:00:00Z",
      "price_usd": "44500.0",
      "market_cap": "845000000000.0",
      "volume_24h": "24000000000.0"
    },
    {
      "timestamp": "2024-01-02T00:00:00Z", 
      "price_usd": "45000.123456",
      "market_cap": "850000000000.0",
      "volume_24h": "25000000000.0"
    }
  ],
  "count": 30
}

Field Descriptions

Price Data

• coin_type: Internal identifier for the cryptocurrency
• symbol: Trading symbol (e.g., BTC, ETH)
• name: Full name of the cryptocurrency
• price_usd: Current price in USD
• price_btc: Current price in BTC (Bitcoin equivalent)
• market_cap: Total market capitalization in USD
• volume_24h: 24-hour trading volume in USD
• percent_change_1h: Price change percentage in the last hour
• percent_change_24h: Price change percentage in the last 24 hours
• percent_change_7d: Price change percentage in the last 7 days
• last_updated: Timestamp of the last price update
• rank: CoinMarketCap ranking position

Historical Data

• timestamp: Date and time of the price snapshot
• price_usd: Historical price in USD at that time
• market_cap: Historical market cap at that time
• volume_24h: 24-hour volume at that time

Supported Coin Types

Common coin types supported:

• bitcoin - Bitcoin (BTC)
• ethereum - Ethereum (ETH)
• vfx - VFX Token
• litecoin - Litecoin (LTC)
• bitcoin-cash - Bitcoin Cash (BCH)

Notes

• Price data is sourced from CoinMarketCap API
• All price values are returned as strings to preserve decimal precision
• Data is cached for performance - cache duration varies by endpoint
• Historical data availability depends on CoinMarketCap's data retention
• Rate limiting may apply based on CoinMarketCap API limits
• Timestamps are in UTC format (ISO 8601)