Overview

The 31Third batch trade smart contracts enable the execution of multiple transactions together as one bundle and collect a configurable fee in basis points of the receiving currency of the trade. The current implementation supports the following:

• Trades through 0xExchangeProxy (0xDef1C0ded9bec7F1a1670819833240f027b25EfF)

• Wrapping/Unwrapping (W)ETH (0xC02aaA39b223FE8D0A0e5C4F27eAD9083C756Cc2)

Architecture

For easily integrating with other liquidity sources, such as Aave, Curve, Balancer, and more in the future, the contracts utilize the adapter pattern and register the concrete implementations in a registry. The architecture can be seen in the following diagram:

Contract architecture