Open the Gemini API page by clicking your name at the top right menu and selecting API Settings.
Click Create a New API Key.
In the API key settings, disable Trading and enable Auditor.
Copy your API key and secret to TokenTax.
Click Confirm once you have copied over the API information.
Log in to your Gemini account
Navigate to the Statements and History page
Click the “Transaction History” tab
Click the download button next to “Exchange Transaction History” and select your desired date range
Click "Download .xlsx"
Upload your CSV file to TokenTax