How are you supposed to sign an address using a bitmex API key?
oh wow - so one of the fools supporters is here, hasn't read all the info and backs me up.
ask your pal - he is the prick who has been saying an API key can act as a bitcoin private Key you window licking punk
If you're going to quote an older messages at least show the context.
Secondly, an API KEY, based on its privileges, can act as a private key because it can be enabled for withdraw.
It doesn't state it's a private key for a bitcoin address, that's an assumption you have made. An API key with secret can be used to trigger withdrawals in bitmex though, if privileges assigned to the key and secret are too relax. That's a valid statement. 3rd party APIs typically separate their APIs based on the public part, where information is not specific to a single user, and the private part - which exposes access on the user's account level.
Think you can control your aspy fits long enough to read through this?
https://www.bitmex.com/app/restAPI#Authentication