Crypto Pricing Data #

Historical Crypto Market Data #

Alpaca provides free limited crypto data and a more advanced unlimited paid plan. To learn more on our paid plan or to subscribe see Alpaca Data.

To request trading pairs data via REST API, see Crypto Pricing Data REST API Reference.

The example below requests latest orderbook data (bid and asks) for the following three crypto trading pairs: BTC/USD, ETH/BTC and ETH/USD.

curl --request GET 'https://data.alpaca.markets/v1beta3/crypto/us/latest/orderbooks?symbols=BTC/USD,ETH/BTC,ETH/USD,SOL/USDT' \
--header 'Apca-Api-Key-Id: <KEY>' \
--header 'Apca-Api-Secret-Key: <SECRET>'
{
    "orderbooks": {
        "BTC/USD": {
            "a": [
                {
                    "p": 27539.494,
                    "s":  0.2632414
                },
                ...
            ],
            "b": [
                {
                    "p": 27511.78083,
                    "s": 0.26265668
                },
                ...
            ],
            "t": "2023-03-18T13:31:44.932988033Z"
        },
        "ETH/USD": { ... },
        "ETH/BTC": { ... },
        "SOL/USDT": { ... }
    }
}

Real-time Crypto Market Data #

Additionally, you can subcribe to real-time crypto data via Websockets. Example below leverages wscat to subscribe to:

  • BTC/USD trades.
  • ETH/USDT and ETH/USD quotes.
  • BTC/USD orderbooks
  • SOL/USDT bars
 $ wscat -c wss://stream.data.alpaca.markets/v1beta3/crypto/us
Connected (press CTRL+C to quit)
< [{"T":"success","msg":"connected"}]
> {"action": "auth", "key": "<KEY>", "secret": "<SECRET>"}
< [{"T":"success","msg":"authenticated"}]
> {"action":"subscribe", "trades":["BTC/USD"], "quotes":["ETH/USDT","ETH/USD"], "orderbooks":["BTC/USD"], "bars":["SOL/USDT"]}
< [{"T":"subscription","trades":["BTC/USD"],"quotes":["ETH/USDT","ETH/USD"],"orderbooks":["BTC/USD"],"bars":["SOL/USDT"],"updatedBars":[],"dailyBars":[]}]
< [{"T":"o","S":"BTC/USD","t":"2023-03-18T13:51:29.754747009Z","b":[{"p":27485.3445,"s":0.25893365},{"p":27466.92727,"s":0.52351568},...],"a":[{"p":27512.92,"s":0.26137249},{"p":27547.9425,"s":0.52011956},...],"r":true}]
< [{"T":"q","S":"ETH/USDT","bp":1815.55510989,"bs":8.24941727,"ap":1818.4,"as":4.15121428,"t":"2023-03-18T13:51:33.256826818Z"}]
< ...

For further reference of real-time crypto pricing data. see Real-time Data Reference section.

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