# How does it work?

**How does it work?**

A user trades via the ecosystem (or transfers a token in) and approves their token for mev opportunities on the sell side. Once an opportunity comes along the user earns profit from the sandwich. (ETH ONLY)

**Additional benefits**

* Trade via the ecosystem and earn $XCEPT rewards in addition to your MEV rewards.
* Earn MEV participation rewards if your balance is smaller. (ETH ONLY)

**Do I need to have $ETH for the Mevbot to work?**

You only need $ETH for the approval, the actual MEV doesn’t need gas.

**Do I need to buy tokens and not just use $ETH to MEV?**

Yes, you need tokens to MEV opportunities on the sell side.

**Is the Mevbot live on other chains?**

Currently only on $ETH mainnet.

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