- Open MetaMask.
- Click
> Expand view.
- Make sure you are on the Optimistic Ethereum network and click Import tokens.
- Enter the token address (0x4200000000000000000000000000000000000042), symbol (OP), and number of decimals (18). Then click Add Custom Token.
- Click Import Tokens to approve.
- You can now see your OP balance in MetaMask.
The OP Mainnet upgrade to the Bedrock release will take place on June 6, 2023 at 16:00 UTC!
There will be 2-4 hours of downtime.
See here for additional details.