O3 Swap Cross-Chain Guide On Neo

Caroline | O3Labs
O3 Labs
Published in
3 min readJun 16, 2023

Preparation

For Neo blockchain cross-chain interaction, you need to first prepare a Neo wallet (NeoLine Google Plugin Wallet)

Installation and usage tutorial: https://tutorial.neoline.io/v/1/ru-he-xia-zai-an-zhuang-neoline/neoline-chrome-cha-jian

Start cross-chaining

Step 1: Connect Wallet

Go to O3 Swap. Click to connect Neo Wallet and EVM Wallet.

For Neo Wallet, select the NeoLine Wallet connection, and for EVM, select whatever you already have.

Step 2: Select chain and token

Click on the Token Logo or the down arrow to select the chain and the token that you want to swap from, then put the number of tokens to transfer in the input box on the right side. Then select the Neo and token that you want to swap to.

Hint: swap for $GAS first in order to transact on Neo chain.

Note: Through O3 Swap, Neo blockchain can be used for cross-chain transactions with six blockchains, including Ethereum, BNB Chain, Arbitrum, Polygon, Metis, and Cube.

Step 3: Confirm the transaction

Then click the “Swap” button to continue the transaction, and click the “Confirm” button in the pop-up window of your wallet extension or app to submit the transaction.

Because two wallets are connected, separate confirmations are required.

If it is the first time that your wallet or the token you select is using O3 Swap, you will need to click on the “Approve” button at the pop-up window. Then click Confirm again. The final step is to click confirm in the pop-up window of your wallet extension or app.

You may receive pTOKEN when the swap fails due to excessive slippage.
If you received pTOKEN, you can convert pTOKEN -> TOKEN via Hub/Convert following the User Guide.

Step 4: Speed up the transaction

If your transaction is stuck in the process, head to Tx Tracker and paste your tx hash to check. You can pay a small gas fee (destination chain) to speed up the process.

For further details, questions, or comments, join our Discord to contact us.

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