> For the complete documentation index, see [llms.txt](https://docs.marsecosystem.com/llms.txt). Markdown versions of documentation pages are available by appending `.md` to page URLs; this page is available as [Markdown](https://docs.marsecosystem.com/zhong-wen/bai-pi-shu/mars-defi-xie-yi.md).
# Mars DeFi协议
Mars DeFi协议包括**Mars Swap**， **Mars StableSwap**等USDm在实现其交易媒介、价值贮存等稳定币基本功能时所必需的DeFi组件。
## Mars Swap
Mars Swap是一个Uniswap类型的AMM DEX。
Mars Swap通过流动性挖矿和交易挖矿等激励手段促进对 
USDm的流动性提供和交易等需求。
Mars Swap上的交易费用为0.3%，其中**0.25%给LP**，**0.05%给在Mars Swap质押** 
**XMS的XMS持有者**。向XMS质押者分发交易费用的具体方式为在市场上用交易费用回购XMS再分发。
XMS质押者可以获得Mars Swap交易费用的设计是Mars Ecosystem对稳定币协议正外部性问题的一个解： USDm在DeFi世界中流转产生的价值也可以被Mars Ecosystem的治理币 XMS所**捕获**。这种设计也为XMS**提供了额外的价值支撑，有利于USDm的稳定性**。
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