# Shadowbook > Shadowbook is a proprietary orderbook DEX on Cardano. ## Docs - [Get order book](https://docs.shadowbook.io/api-docs/order-book.md): Retrieve a snapshot of the orderbook for a trading pair. - [Overview](https://docs.shadowbook.io/api-docs/overview.md): Read-only HTTP API for querying the Shadowbook orderbook and trading pair data. - [List trading pairs](https://docs.shadowbook.io/api-docs/pair-list.md): Retrieve all trading pairs tracked by Shadowbook with their last known spot price. - [Introduction](https://docs.shadowbook.io/index.md): Shadowbook is a HFT proprietary orderbook DEX on Cardano blockchain - [Datum building](https://docs.shadowbook.io/on-chain-interactions/datum-building.md): How to construct the order datum, calculate prices, serialize addresses, and compute order beacons. - [On-chain orders](https://docs.shadowbook.io/on-chain-interactions/limit-order.md): Smart contract reference for placing limit and market orders on Shadowbook. - [Market order](https://docs.shadowbook.io/on-chain-interactions/market-order.md): How to place a market order on-chain - executes at the current market price with a single execution fee. - [Order cancel](https://docs.shadowbook.io/on-chain-interactions/order-cancel.md): How to cancel on-chain orders on Shadowbook. - [Order book](https://docs.shadowbook.io/overview/order-book.md): How Shadowbook's On-Chain Order Book Works - [Order types](https://docs.shadowbook.io/overview/orders.md): Limit and market orders on the Shadowbook orderbook.