Sign up for a Bittrex account or Sign in to an existing account. On the header click on Account to access account settings and select API Keys.
Click on Add new key and under the new key created, make sure to enable permissions for Read Info and Trade. Click save to continue.
To complete the API Key creation, Bittrex will request an authentication code from your 2FA device.
Copy and paste both API Key and Secret Key in CryptoHero. Bittrex does not support adding API Keys with QR code.