Level 3 Market Data

Level 3 market data

Level 3 market data is the final level of the market data. Since level 3 market data is also an order book, it is quite similar to level 2 market data. The difference between level 2 and 3 market data is that level 3 has a much greater market depth than level 2. Level 2 market data provides, at most, ten best bid-ask offers, whereas level 3 market data can provide double that amount.

The orderbooks3 endpoint

We can fetch level 3 market data using the orderbooks3 endpoint. As of this writing, CoinAPI only provides current data for level 3 order books.

Current order book data

We can get a complete list of all current level 3 order book data on CoinAPI. To fetch the current level 3 order book data for all symbols, we use /v1/orderbooks3/current. To fetch the current level 3 order book data for a specific symbol, we use /v1/orderbooks3/{symbol_id}/current. When fetching the current level 3 order book data for one specific symbol, the single current order book data object will not be encapsulated in a JSON array.

The orderbooks3 endpoint takes in the following URL parameters to fetch the current level 3 order book data: