Add Message

Add a message to an active session.

Append a new message to the session’s conversation history. The session must be in PENDING status. Adding a message resets the auto-process timer, keeping the session active.

• custom_user_id: User identifier (required)
• session_id: Session UUID (required)
• role: Message role: user, assistant, or system
• message: Message content text

Returns success confirmation. Session will auto-process after inactivity timeout.