Wallet Address · ~5 min · ETH · ERC-20 · OP · DeFi · India · 100+ countries
What’s covered
ETH and ERC-20 ETH and ERC-20 transfers on Optimism.
OP and DeFi OP token activity and DeFi transactions on Optimism.
Before you start
Optimism wallet address Your public Optimism wallet address (starts with 0x). Never your private key or seed phrase.
KoinX account Free account — no credit card needed.
Connect Optimism to KoinX
Select Optimism
Search for Optimism in the integrations list and select it.
Enter your public wallet address
Paste your public Optimism wallet address into the address field, then click Connect . KoinX only requires your public wallet address. Never enter your private key or seed phrase.
Wait for sync to complete
KoinX fetches all on-chain Optimism transactions. Once sync completes, your entire Optimism history is in KoinX.
Done. KoinX has your complete Optimism transaction history.
Head to Tax Reports to generate your crypto tax report.
Frequently asked questions
Does KoinX support Optimism blockchain?
Yes — KoinX supports Optimism integration including ETH and ERC-20 transfers, OP token activity, and DeFi transactions.
Is my Optimism address the same as my Ethereum address?
Yes — Optimism uses the same address format as Ethereum (0x…). Your Optimism and Ethereum addresses are identical but exist on separate chains.
Can I add multiple Optimism wallets in KoinX?
Yes — add each wallet address separately under the Optimism integration.
Does KoinX import full Optimism transaction history?
Yes — KoinX fetches your complete on-chain history. Contact KoinX support if you have more than 30,000 transactions.
Are OP airdrop transactions classified correctly in KoinX?
Airdrop transactions are classified as income. Review them in the Transactions view and adjust the classification if needed.
Verify your Optimism transactions
Navigate to the Optimism integration
Go to Integrations → Optimism in KoinX.
Verify transactions are present
Confirm ETH, OP token, and DeFi transactions are listed.
Review unclassified transactions
Click on any unclassified items to assign the correct category.
Confirm portfolio reflects Optimism holdings
Check Portfolio to confirm assets appear correctly.
What does a successful Optimism sync look like?
The Optimism integration page shows your wallet address, transaction count, and last-synced timestamp.
My Optimism balance doesn't match my wallet — why?
Verify the wallet address and refresh the sync. Contact KoinX support if the mismatch persists.
Optimism DeFi transactions are unclassified — what do I do?
Click on each unclassified transaction and assign the correct category.
Troubleshooting
Optimism transactions aren't showing up after sync
Why this happens: Incorrect wallet address or sync still in progress.Fix: Verify the address under Integrations → Optimism . Remove and re-add if wrong.
Optimism wallet sync is taking too long
Why this happens: High DeFi transaction volume on Optimism.Fix: Wait up to 10 minutes. Remove and reconnect if not resolved.
DeFi transactions aren't classified correctly
Why this happens: Complex DeFi protocol structures.Fix: Re-sync and manually classify remaining unclassified transactions.
KoinX shows an error for my Optimism wallet
Why this happens: Temporary node connection issue.Fix: Click Reconnect or remove and re-add the wallet.
Does reconnecting Optimism wallet create duplicate transactions?
No — KoinX deduplicates automatically.
Ethereum Connect your Ethereum mainnet wallet.
Arbitrum Connect your Arbitrum wallet.
Base Connect your Base wallet.
Polygon Connect your Polygon wallet.
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