cross-asset-swap

A generalized 1inch-like protocol, allowing optimized swaps between any ERC-20/721/1155

Architecture

Cross-Asset-Swap (CAS) is a set of contracts which lets you to swap any input combination of assets (ETH+ERC20+ERC721+ERC1155) to any output combination of assets in a single transaction (in an optimized way).

The CAS is composed of following parts:

• CrossAssetSwap: This is the main contract, and single point of contact for the user (EOA/contract). It contains all the functions that can be used to perform different types of swaps.

• Markets: Markets are where you buy/sell your assets (eg. NFTX, NFT20, OpenSea, etc). All the markets, "active" or "unactive", are registered on the MarketRegistry. You can see a list of markets currently registered on the MarketRegistry. There is no limit to how many markets can be added to the MarketRegistry. Anybody can add a new market to the MarketRegistry following the procedure explained below. A market can be deactivated (can be re-activated) in case of any emergency.

NOTE: Community is encouraged to add more markets to the CAS. Market strategist can earn a cut of the trade amount.

• Exchanges: Exchanges are where you swap the ERC20 tokens (eg. Uniswap, SushiSwap, 1inch, etc). All the exchanges, "active" or "unactive", are registered on the ExchangeRegistry. You can see a list of exchanges currently active on the ExchangeRegistry. There is no limit to how many exchanges can be added to the ExchangeRegistry. Anybody can add a new exchange to the ExchangeRegistry following the procedure explained below. An exchange can be deactivated (can be re-activated) in case of any emergency.

NOTE: Community is encouraged to add more exchanges to the CAS. Exchange strategist can earn a cut of the trade amount.

What does CAS enable?

• Makes the ecosystem (especially, NFT ecosystem) more liquid by allowing you to trade across multiple markets in a single transaction.
• It allows single transaction arb trades across multiple markets. This helps to stabalize the price of assets (especially NFTs) across the ecosystem.
• Allows you to perform NFT arbs without any initial capital (using NFT flashloans). This also stabalizes the NFT price across markets.

TODO: Maybe add Flashloans as a part of the protocol.

Supported Markets

Note: Here TBD means "To be deployed". WIP means "Work in progress"

Market	Type	Status	Address [index]
NFTX	BUY(WIP), SELL	ACTIVE	TBD (waiting for v2)
NFT20	BUY, SELL	ACTIVE	0x064C9c5Fe72ab6acdc0d220050d519AfAa59B9bB [0]
AxieInfinity	BUY	ACTIVE	0xdCAEE44ED2965d5615a9A206f6f3ab8fb90Fcd62 [1]
Cryptokitties	BUY	ACTIVE	0x7207d099EBAb7cF9DE49A29739Dd0C628dDCf48D [2]
CryptoPunks	BUY	ACTIVE	0x03DcA7d783175Ba9D97cc41D20e4c266C7abb881 [3]
Decentraland	BUY	ACTIVE	0x0545405a2c208d3E2c50c71cF0B6B9a72A021b49 [4]
EulerBeats	BUY	ACTIVE	0x2428aE09b453692A667b8A8dee1Fc4082f44Ad05 [5]
KnownOrigin	BUY	ACTIVE	0xCBc360534370F1d5465e531236027f0610E067bf [6]
MoonCatsMarket	BUY	ACTIVE	0xdAD871D701Da0D98993Eaa27Ce9c2e51D8912B87 [7]
SuperRare	BUY	ACTIVE	0x99f2B1FF838dA5Ee5062358b4Fa2c763C93Fe474 [8]
UniqueOne (WIP)	BUY	WIP	TBD
Makerspace (WIP)	BUY	WIP	TBD
OpenSea (WIP)	BUY	WIP	TBD
Rarible (WIP)	BUY	WIP	TBD
Synther (WIP)	BUY, SELL	WIP	TBD
Drops (WIP)	BUY, SELL	WIP	TBD
0xProject (TODO)	BUY, SELL	WIP	TBD
Sorare (TODO)	BUY	WIP	TBD
SandboxGame (TODO)	BUY	WIP	TBD

Supported Exchanges

Note: Here TBD means "To be deployed"

Exchange	Status	Address [index]
UniswapV2	ACTIVE	0xb5C70AC5147eF7DbB060382F7A5C724C2bEF070d [0]
SushiSwap	ACTIVE	TBD
UniswapV3	WIP	TBD

How to add a new market to CAS?

The CAS is agnostic to how the (sell/buy) markets work. It's possible to add any market to CAS by creating a simple market contract which follows the market interface and submitting a PR. The market contract is reviewed and will be registered to the MarketRegistry.

How to add a new exchange to CAS?

The CAS is agnostic to how the exchanges work. It's possible to add any exchange to CAS by creating a simple exchange contract which follows the exchange interface and submitting a PR. The exchange contract is reviewed and will be registered to the ExchangeRegistry.

Available Swaps

FROM [ERC1155] TO [ETH+ERC20+ERC721+ERC1155]

FROM [ERC721] TO [ETH+ERC20+ERC721+ERC1155]

FROM [ERC20] TO [ETH+ERC20+ERC721+ERC1155]

FROM [ETH] TO [ETH+ERC20+ERC721+ERC1155]

FROM [ETH+ERC20+ERC721+ERC1155] TO [ETH+ERC20+ERC721+ERC1155]