How to do your Aster taxes with Koinly
Aster is a multi-chain decentralized exchange that offers perpetual and spot trading. It supports trading on BNB Chain, Ethereum, Solana, and Arbitrum.
With just your Aster transaction history, Koinly can help you calculate Aster crypto taxes, including gains, losses, income, and more. Here's how to export it.
Follow these steps to sync your Aster data automatically to Koinly:
- Log in to Aster and click More > API Management
- You can also click this link: https://www.asterdex.com/en/api-management
- Switch to Pro API
- Click "Authorize new API wallet"
- Wallet name - you can put anything here, it's just a description
- Click Generate next to Wallet address
- Save the public and private key
- Under API restrictions, make sure that only "Read" is selected
- All other options need to be OFF. Make sure that "Enable futures", "Enable spot trading" and "Enable withdrawals" are OFF
- For Days valid, click "max" (365 days)
- Leave IP restrictions empty
- Click Authorize
- In Koinly, paste your actual 0x address in "Wallet address", the public API wallet key in "API wallet address", and the private key in "API wallet private key"
On Koinly:
- Create a free account on Koinly
- Complete onboarding until you get to the Wallets page and find Aster in the list
- Select API > Paste the API keys you copied above in the appropriate box
- Hit Import and wait for Koinly to sync your data. This can take a few minutes
- Review your transactions on the Transactions page to ensure everything is tagged correctly and no missing data
- Go to the Tax Reports page to view your tax liability!
- Head over to our help center
- Hit up our discussion boards - we might have already answered your question
- Ask us on social media - we're on Twitter and Reddit
- Contact us on email or live chat
- Got a feature request? Give us feedback on Canny
FAQs
What is Aster?
Aster is a multi-chain decentralized exchange that offers perpetual and spot trading. It supports trading on BNB Chain, Ethereum, Solana, and Arbitrum, but has plans to move to its own Layer-1 blockchain, Aster chain, for private and high-frequency trading (Q1 2026). One of its main features is 'Trade and Earn', which creates multiple streams of income by allowing users to earn a passive yield on assets used as collateral.
Is Aster safe?
Aster is considered relatively safe; it's a non-custodial, decentralized exchange, so it doesn’t hold user funds. Users need to connect a self-custody wallet, then smart contracts transfer collateral and handle trade execution. Aster uses audited smart contracts to keep funds safe, but no DeFi protocol is risk-free, and they may still be vulnerable to smart contract exploits. As Aster never touches user funds, it can’t help recover them if they’re lost. As always, it's important to keep your private keys safe and proceed with caution.
Does Aster provide tax documents?
No, Aster doesn't issue tax documents, but you can export your Aster transaction history as a CSV file and upload this to a crypto tax calculator like Koinly to calculate your profits and generate your tax reports.

