Click on the profile icon in the top right corner and select API Management.
3
Create a new API key
Click Create New API Key and select the Default API entry.
4
Set permissions and IP settings
Set permissions to Read Only and set IP address binding to Don’t Bind.
Set IP binding to Don’t Bind and permissions to Read Only. IP restrictions will block KoinX servers from connecting. Never enable trading or withdrawal permissions on a third-party API key.
5
Generate and copy your API key
Click Generate Key. Copy both your API Key and Secret Key and store them securely. The Secret Key is shown only once.
Log in to app.koinx.com -> Integrations -> Add Integration.
2
Select Phemex
Search for Phemex and select it.
3
Paste your keys and import
Paste your API Key and Secret Key into the respective fields and click Import Now.
Done. KoinX begins syncing your Phemex history. Large accounts may take a few minutes.
Once your Phemex data is in, head over to Tax Reports on KoinX - your capital gains, income breakdown, and country-specific crypto tax report are ready for you there.
What permissions does the Phemex API key need for KoinX?
Read Only permissions with IP binding set to Don’t Bind. This gives KoinX access to your transaction history without the ability to place trades or move funds. IP restrictions block KoinX servers and must be disabled.
Will Phemex show my Secret Key again after I leave the page?
No. Phemex displays the Secret Key only once at the time of creation. Copy it immediately and store it securely. If lost, delete the key from API Management and generate a new one.
Does KoinX support Phemex futures and leverage trading for tax?
Yes. KoinX imports your full Phemex transaction history via API, including futures positions and leveraged trades, and classifies each correctly for your tax report.
Does Phemex provide tax reports directly?
No. Phemex does not provide tax-ready reports. By connecting your Phemex account to KoinX via API key, your full transaction history is imported automatically and a compliant tax report is generated within minutes.
Does KoinX support my country's crypto tax rules?
Yes. KoinX supports 100+ countries with dedicated report formats for India, the US, UK, Australia, Canada, Germany, and more. After importing your Phemex data, select your country to generate the correct report.
Confirm the key was generated with Read Only permissions and IP binding set to Don’t Bind in Phemex -> API Management. Delete the credentials in KoinX and re-enter both values carefully - copy directly from Phemex to avoid invisible characters.
KoinX shows a connection error immediately on sync
IP binding is likely set to a specific address during key creation. Go to Phemex -> API Management, delete the existing key, generate a new one with IP binding set to Don’t Bind, and reconnect in KoinX.
Transactions are missing after sync
Trigger a manual re-sync from KoinX -> Integrations -> Phemex. If records are still missing, disconnect the integration, generate a fresh API key from Phemex, and reconnect in KoinX.
API sync keeps failing
Check the Phemex platform for ongoing maintenance. If the platform is operational, verify the key is still active under API Management. Regenerate if expired, re-enter credentials in KoinX, and trigger a fresh sync.
API connection worked before but stopped syncing
Phemex API keys can become inactive following account security changes. Log in to Phemex, check the key status under API Management, and regenerate if inactive. Update the new credentials in KoinX under Integrations -> Phemex -> Edit.
KoinX is showing duplicate Phemex transactions
Check KoinX -> Integrations for duplicate Phemex connections and remove any extras. If a file was previously uploaded for the same period, delete those transactions before re-syncing via API.