Also known as: Headless Security Information and Event Management
A SIEM that exposes approved, permission-aware security capabilities through AI agents, APIs, automations, dashboards, and service workflows as well as its normal interface.
Headless SIEM means security work is not limited to the product's browser interface. The normal interface remains available, while approved capabilities can also be called through AI agents, APIs, automations, dashboards, and service workflows.
The useful distinction is control. A headless SIEM should expose bounded functions, tenant context, permissions, evidence handling, workflow rules, and audit records rather than giving an external client unrestricted backend access. See the AI SIEM tools guide for evaluation questions.
An API or an MCP connection does not by itself make a SIEM headless. The operating layer around the connection determines whether external work is repeatable, permission-aware, evidence-based, and auditable.