Get the extension Optimism (OP) with an offline key
OP is the governance token of Optimism and its Superchain, used to vote in the Optimism Collective.
Locker Protocol Wallet shows your OP balance in the browser and sends every OP transfer to Locker Vault, an offline device, to be signed.
Where the wallet supports OP
Optimism
ERC-20 · Decimals 18 · Fee paid in ETH
| Network | Standard | Contract | Decimals | Fee paid in |
|---|---|---|---|---|
| Optimism | ERC-20 | 0x4200000000000000000000000000000000000042 | 18 | ETH |
Each contract above was checked on-chain before it was added to the wallet. Tokens with the same name are easy to create: the wallet shows the OP logo only at these addresses, and any other token calling itself OP appears without it.
Receive and send OP
Set up the wallet
Install Locker Protocol Wallet in Chrome or Brave, and Locker Vault on a spare phone kept offline. Your addresses reach the extension by QR code.
Receive OP
Give your address on the network the sender uses. The network matters: OP sent on one network does not arrive on another.
Send OP
Enter the recipient and the amount in the extension and check the network fee, then scan the request with the Vault, read it there and approve.
A transfer is paid in the network's own coin, even when you send a token: keep a little of the coin shown in the table.
OP: questions people ask
Which network should I use to receive OP?
The one the sender uses. When you withdraw from an exchange, choose the same network in the withdrawal form as the address you give. If they do not match, the funds may not arrive.
Does Locker Protocol Wallet charge a fee to hold or send OP?
No. Holding costs nothing and a transfer costs only the network fee. The wallet's own fee applies to swaps and bridges made in the extension, at most 0.25%, and it is shown before you sign.
How do I avoid a fake OP token?
Compare the contract with the one listed here or on the issuer's site. A token that appears in your wallet unasked, calling itself OP, is often bait for a scam.
Where is the private key that controls my OP?
On Locker Vault, the offline device, derived from your recovery phrase. The extension on your computer only knows your addresses, so malware there cannot move your OP.
Other assets on the same networks
Related terms
Optimism is not issued by Locker Protocol, and nothing on this page is investment advice.