How to Deposit ZK on OKX? zkSync Funding Tutorial
When depositing ZK on OKX, first clarify which "ZK" you're dealing with — ZKsync (ZK) is the native token of the zkSync Era Layer 2 network and uses the ZKsync network; if you mean Polyhedra Network (ZK), it uses a different deposit channel on OKX. The safest route is to buy directly with USDT on the exchange, without worrying about which network to select.
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1. Confirm Which Project Your "ZK" Belongs To
What to do: Figure out whether your "ZK" tokens are ZKsync (zkSync Era) or Polyhedra Network (ZK). Both have the ticker ZK but run on entirely different chains.
How to do it:
The ZK spot trading officially listed on OKX is Polyhedra Network (ZK). ZKsync is a separate project and is also within OKX's supported purchase range. Both projects are called ZK, but they are not compatible with each other.
Scenario A: Your ZK comes from the zkSync Era network. zkSync is a Layer 2 chain, and ZK is its native token. If your wallet displays ZK on the zkSync Era network, you need to deposit via the ZKsync network.
Scenario B: Your ZK is Polyhedra Network (ZK). Polyhedra Network is a ZK bridging protocol, and its token is also called ZK. OKX launched its spot trading, deposits, and withdrawals in March 2024. Polyhedra has its own cross-chain ecosystem, with its token deployed on different chains.
When is this step complete: You have confirmed the specific project name of your ZK and the network it resides on (zkSync Era or another chain).
Prerequisites: Your OKX account must have completed identity verification (KYC). Unverified accounts cannot deposit.
Common reasons for failure: Assuming ZK defaults to zkSync without clarifying which project's token you actually hold — the ticker ZK is currently used by multiple projects; choosing the wrong deposit channel could result in fund loss.
2. Deposit ZK from zkSync Network to OKX
What to do: If your ZK is on the zkSync Era network (i.e., zkSync L2), transfer ZK from your wallet to the OKX exchange.
How to do it:
Open the OKX App, tap [Assets] at the bottom, and select [Deposit].
Search for "ZK".
Select network: You must choose the ZKsync network (zkSync Era), not ERC20 or others. OKX's deposit rule: the selected deposit network must be identical to the withdrawal network of the sending platform/wallet; otherwise, assets will be lost.
The page will display the deposit address and the minimum deposit amount. If the amount is below the minimum, the funds cannot be credited and cannot be refunded.
Copy the address, open your wallet, and initiate the transfer. Ensure the wallet network is the zkSync Era mainnet.
When is this step complete: The transfer has been submitted, and the OKX assets page shows a "depositing" status.
Prerequisites: Your wallet holds a ZK balance and has enough ETH on the zkSync Era network to pay for gas.
Common reasons for failure: The wallet's ZK is on zkSync Era, but you selected a network other than "ZKsync" on OKX. OKX official documentation notes that tokens with the same symbol may exist on multiple networks; always verify the contract address and blockchain.
Risk warning: Blockchain transfers are irreversible. For first-time operations, it's recommended to send a small test amount first and only transfer the remainder after confirming the deposit has arrived.
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3. Buy ZK Directly on OKX (Skip the Deposit Hassle)
What to do: If you don't yet hold ZK, buy it directly on OKX with USDT, avoiding deposit complications and cross-chain gas fees. This is the most recommended path for beginners.
How to do it:
Ensure your account has USDT. If not, fund it first via bank transfer, credit card, or C2C. Bank transfers typically take 1–3 business days to process.
Go to [Trade] - [Spot], search for "ZK" or "ZKsync", and select the corresponding trading pair.
Choose a market order for immediate execution, or a limit order to set a price and wait for execution.
Once filled, the ZK will appear in your spot account.
OKX spot trading fees are 0.08% maker and 0.10% taker.
When is this step complete: The spot account displays a ZK balance.
Prerequisites: The account has completed KYC and has a sufficient USDT balance. OKX supports bank transfers, credit/debit cards, Apple Pay, PayPal, and other payment methods, though subject to regional restrictions.
Common reasons for failure: Searching "ZK" returns multiple results without checking whether it's ZKsync or another ZK project. Before placing an order, confirm the trading pair name matches the one you intend to buy.
What to do next:
Based on your situation:
You already have on-chain ZK (zkSync Era): Follow step 2. Send a small test transaction first, and after confirming the deposit, transfer the rest. Make sure to select the "ZKsync network" on the OKX deposit page.
You don't have ZK yet: Follow step 3, buy with USDT — the easiest way, no need to worry about the network. Search "ZKsync" on OKX or search "ZK" directly and identify the correct project from the list.
