360X
API ReferenceRESTWebsocketsFIX
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API ReferenceRESTWebsocketsFIX
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  1. FIX
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API ReferenceRESTWebsocketsFIX
SupportStatusWebsite
API ReferenceRESTWebsocketsFIX
SupportStatusWebsite
  1. FIX

Authentication

The Logon message (MsgType = A) is the first message exchanged in a FIX (Financial Information Exchange) session. It is used to initiate and establish a session between two counterparties — typically a client (initiator) and a server (acceptor).
Info
You must include your credentials in the Logon message to establish a connection with the 360X FIX server.

Logon (35=A)#

The Logon message authenticates a user establishing a connection to a remote system. The Logon message must be the first message sent by the application requesting to initiate a FIX session.
The client sends a Logon message to start a session, and the server responds to confirm receipt. Each connection can only have one active session; attempting to send a Logon message when a session is already established will result in an error.
TagNameRequiredDescription
553UserNameYClient API Key.
554PasswordYPassphrase for Client API key.
For the Username and Password, you need to send the Client ID and Client Secret that you can request from 360X.
If the Username and Password are invalid, a Session will not be established.
Below is sample Go Code to send Username and Password in Logon Message.
logon-msg.png

Logout (35=5)#

The Logout message starts or confirms the ending of a FIX session. If a disconnection occurs without the exchange of Logout messages, it should be viewed as an error.
logout-msg.png
Modified at 2025-07-28 14:51:54
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