> For the complete documentation index, see [llms.txt](https://docs.sirius.finance/llms.txt). Markdown versions of documentation pages are available by appending `.md` to page URLs; this page is available as [Markdown](https://docs.sirius.finance/development/smart-contracts/swap.md).

# Swap

Swap provides functionalities that are used to exchange a token for another regardless if it's a stable coin or a standard crypto token.

## Contract info

**Contract name:** Swap

**Contract address**

* 4Pool: 0x417E9d065ee22DFB7CC6C63C403600E27627F333
* Starlay 4Pool: 0x0fB8C4eB33A30eBb01588e3110968430E3E69D58
* BAI Metapool: 0xD18aD1e2992Da974b5A8d69377e6aB3b16e30F29
* JPYC Metapool: 0x3cd1Fa4EeeFdf6c30E66c66A474e8E4dd509f54c
* WBTC Metapool: 0xD25Cf814EeE54840A08Db8dfAbFE445B1DE37f0f
* WETH Metapool: 0x2d5Da7c463B3E8f4CF1AF08a1aA0a5DB9BB644F7
* WBNB Metapool: 0xC9d4f937Fa8e0193b46817a41435a262867ff090
* oUSD Metapool: 0xD18AbE9bcedeb5A9a65439e604b0BE8db0bdB176

View [Sirius on Github](https://github.com/SiriusFinance/siriusfinance-contract)

***

## Interfaces

## Write functions

### **Swap**

```
void swap(uint8 tokenIndexFrom, uint8 tokenIndexTo, uint256 dx, uint256 minDy, uint256 deadline);
```


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