Is it safe to provide CryptFolio a BTCLevels API key?
You need to make sure that the API key does not have the Trade permission. This should
mean that the API key can only be used to retrieve account status, and it should not be possible
to perform trades or withdraw funds using that key.
Your BTCLevels keys and secrets will never be displayed on the CryptFolio site, even if you have logged in.
Through the BTCLevels interface you can remove an API key at any time by clicking Remove.