Gas fees on ZK/Portal bridge too high

[beebeehem]

🌟 Feature Request

Work on reducing gas fees while bridging from Ethereum to ZKSync using the official bridge.

It costs about $35 currently to bridge ETH from the official bridge to ZKsync. That's 7-10x higher than third party bridges

🤔 Rationale

The high gas fees will deter users from using the official bridge, hence finding alternatives.

[0xSimeon]

All official bridges have high gas costs. I don't think it is a zksync centric problem.

[brianoy]

All operations on the mainnet now require high amounts of gas (ETH). The issue you should raise is to recommend matterlab to build a multi-chain official bridge and not just use the mainnet as the only official bridge.
You can use orbiter.finance, which does not rely on smart contracts, so it does not need to consume too much gas. Each cross-chain transfer activity is only considered one transaction. It costs about 11 usd from the mainnet to the zksync era chain, and it costs about 3 usd from linea to the zksync era chain. In fect, you can directly use binance to transfer ETH to the zksync era chain, which costs about 1 usd.

[ScapeXYZ]

Good one

[EmilLuta]

@vladbochok is this something we can look into?

[ifarhoo20]

agree and resolve :)