hi i want to put a main eth token on this dex (https://www.youtube.com/watch?v=t8U7GRrlYW8&t=3724s) but I cant find the eth contract. how should I do it ?
What main eth token are you trying to use?
You can use the Wrapped Eth token (WETH). It is equal to Eth and you can swap.
https://etherscan.io/token/0xc02aaa39b223fe8d0a0e5c4f27ead9083c756cc2