200
The request was successful.
400
The request had bad syntax or was inherently impossible to be satisfied.
401
Authentication failed, probably because of invalid/missing API key.
402
The usage limit has been reached, either you exceeded per day requests limits or your balance is insufficient.
403
You are not authorized to perform this operation.
404
The requested resource was not found.
405
The requested method was not found.
500
Ops. Something were wrong.
503
Our system is a bit busy at the moment and your request can’t be satisfied.