POST /fapi/v1/leverage returns the same error also.
All other requests are fine
Does the futures account open? are you able to call this endpoint:
Yes, account is opened, and I can get balances. I try right now, and can’t reproduce this issue at the moment. Could it be some temporary problems with API ?
Not aware of other reports on similar cases, but if it happens again, please report again and let us know if there was any change with the API-key and other modifications you might find relevant. Thank you.