Any Ethereum wallet that supports custom EVM networks can hold OP, because OP Mainnet is EVM-equivalent and uses the same address format as Ethereum. The practical choice comes down to how much you hold and how often you transact: MetaMask and Rabby for daily use, Ledger or Trezor for balances you would hate to lose, and a Safe multisig for treasury-sized positions. Optimism itself publishes no first-party wallet, so every option here is third-party software.
One detail catches people out. OP exists as an ERC-20 on both Ethereum mainnet and OP Mainnet, and sending it to the right address on the wrong network is the most common way holders lose access to it.
Software Wallets for Everyday Use
MetaMask
The default choice, and the one most Optimism applications assume. OP Mainnet appears in MetaMask's network list without manual configuration, and the built-in bridge handles Ethereum to OP Mainnet transfers. Its weaknesses are the familiar ones: browser extension exposure, a cluttered interface as you add networks, and transaction previews that are less informative than newer alternatives.
Best for someone who wants the widest possible application compatibility and does not want to think about configuration.
Rabby
Rabby was built for people who use several chains at once, which describes almost everyone on Optimism. It switches networks automatically based on the site you connect to, simulates transactions before you sign so you can see the expected balance changes, and flags contract approvals that look dangerous.
For active DeFi use on OP Mainnet, the pre-signature simulation is the single most useful safety feature available in a hot wallet. It is the better MetaMask for anyone who has ever signed something they regretted.
Rainbow
Rainbow is the mobile-first option, with OP Mainnet supported out of the box and a cleaner presentation of tokens and NFTs than most competitors. It suits holders who check positions from a phone and interact with a handful of trusted applications, rather than power users managing approvals across a dozen protocols.
Mobile wallets carry device-level risk that desktop extensions do not, so treat a phone wallet as a spending account. Governance participation matters here too: delegating OP voting power works from any of these wallets without moving tokens, as our Optimism governance guide explains.
Hardware Wallets for Long-Term Holdings
Ledger
Ledger devices sign OP Mainnet transactions natively and pair with MetaMask or Rabby, so the interface stays familiar while private keys never leave the device. Clear-signing support means the device screen shows what you are approving rather than an opaque hash, which matters when interacting with contracts rather than sending plain transfers.
Trezor
Trezor offers the same core protection with fully open-source firmware, which some holders prefer on principle. Setup with OP Mainnet requires adding the network through a companion interface such as MetaMask, and the workflow is marginally less polished than Ledger's for L2 use.
For a position you plan to hold through an unlock schedule that runs to 2029, the calculation is simple: hardware custody costs under $100 once, and the OP tokenomics breakdown explains why that horizon is realistic for anyone accumulating on weakness.
Multisig and Shared Custody
Safe, formerly Gnosis Safe, is the standard for balances held by more than one person or by anyone who wants a hardware wallet plus a recovery path. It deploys as a smart contract on OP Mainnet and requires a configurable number of signatures for each transaction.
The trade-off is cost and friction. Every transaction needs multiple approvals, and the Safe contract itself must be deployed on each network you use it on. For a fund, a DAO or a large individual position, that friction is the product.
Getting OP Into Your Wallet
Adding OP Mainnet and funding it takes a few minutes:
- Add the network. Most wallets list OP Mainnet by default. If yours does not, add it manually with chain ID 10 and an RPC endpoint from the Optimism developer docs.
- Fund it with gas. OP Mainnet uses ETH for gas, so bridge or buy a small amount of ETH on the network before doing anything else.
- Bridge or withdraw. The official bridge moves assets from Ethereum in minutes, but withdrawals back to Ethereum wait out the seven-day challenge window described in our OP Stack and Superchain explainer. Third-party bridges front the liquidity for a fee.
- Verify the token contract. Check the OP contract address against a reputable source such as CoinGecko before adding it manually, since fake ERC-20s copying the ticker are common.
- Confirm the network before every send. An OP transfer sent on Ethereum mainnet to an OP Mainnet-only address is unrecoverable without the receiving key.
Buying OP on an exchange and withdrawing it to self-custody is the usual route for larger positions. Traders taking shorter-term views often skip custody entirely and use derivatives instead, an approach that sidesteps bridge risk and is worth weighing against the catalysts in our OP price prediction.
Frequently Asked Questions
Can I store OP in MetaMask?
MetaMask supports OP tokens on both Ethereum mainnet and OP Mainnet, and OP Mainnet is included in its default network list. Add the OP token contract manually if the balance does not appear automatically, and always verify the contract address against a reputable block explorer first. MetaMask can also be paired with a Ledger or Trezor for hardware-backed custody.
Does Optimism have an official wallet?
Optimism publishes no first-party wallet. The network is EVM-equivalent, so any Ethereum wallet supporting custom networks works, and the ecosystem relies on established third-party options such as MetaMask, Rabby, Rainbow, Ledger and Safe. This is deliberate, since the OP Stack is designed to inherit Ethereum's existing tooling rather than replace it.
Is it safe to keep OP on an exchange?
Keeping OP on a reputable exchange is convenient for active trading and removes bridge and seed-phrase risk, but it means you do not control the private keys. A common split is holding a long-term core position in hardware self-custody while keeping trading size on an exchange. Which approach fits depends on how often you transact and how much of your OP is held as a governance position, a distinction our Optimism and Arbitrum comparison touches on for both tokens.
Do I need ETH to move OP on Optimism?
Gas on OP Mainnet is paid in ETH, so a wallet holding only OP cannot send a transaction. Bridge or acquire a small amount of ETH on OP Mainnet before you need it, since fees typically run well under a cent and a few dollars lasts a long time. Ecosystem grants funded through Optimism Retro Funding have covered work on gas abstraction, but ETH remains the default.
Matching the Wallet to the Position
Wallet choice on Optimism is a risk decision rather than a feature comparison, because every option here can hold and send the same token on the same network. What separates them is what happens when something goes wrong: a compromised browser, a malicious approval, a lost device, a signature you did not read.
Rabby's transaction simulation covers the most common failure mode for active users. Hardware custody covers the most expensive one for long-term holders. Safe covers the case where no single person should be able to move the funds alone. Most holders end up using two of the three.
Buy and self-custody through OP spot trading, or trade the token without holding it at all using OP perpetual futures on LeveX. More token guides are collected in Crypto in a Minute.