To read messages you need:
There are several types of keys used for different purposes (will be described below).
We do provide ready strategies and EAs to execute orders using special syntax. But you can read and parse/process these messages yourself (will be described below).
This type of keys are used for sending messages from another trading platform like MetaTrader 4/5. You can get it:
Read this article which describes how to get a channel reading key.
Read this article which describes how to get a channel reading key.