# About Across interaction

**Published by:** [zhe988](https://paragraph.com/@aspreybugatti/)
**Published on:** 2022-03-09
**URL:** https://paragraph.com/@aspreybugatti/about-across-interaction

## Content

About Across interactionAcross the chain interaction tutorial - ETHIntroductionAcross is the fastest, cheapest and safest bridge between L1 and L2 This interaction cost 70u, minimum cross-chain amount 0.1ETH Official Twitter：(17) Across (@AcrossProtocol) / TwitterOfficial discord：Across Protocol (discord.com)interactionOpen the website and connect your walletL1 to L2 cross-chain'From' select ETH, fill in the cross-chain amount, 'To' select Arbiturm or Optimism, here select Arbitrum. It is recommended that the cross-chain amount is larger, 0.1ETH to start with, because according to my interactive findings, step 3 L2 to L1 cross, the minimum required amount is 0.1ETH, because the fee is the same.Click Send to sendThe cross-chain is successful, and the funds will arrive in about 10 minutesL2 to L1 cross-chain’From‘ select Arbitrum, enter the cross-chain amount, ’to‘ select ETHClick SendSuccessful recharge, estimated arrival time 2 minutesAdding PoolClick the 'Poll' button at the top to go to the pool page Click 'ADD', enter the number of ETH to be added to the pool, and click 'Add Liquidity'This interaction is complete

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