MentionOS is an autonomous Answer Engine Optimization (AEO) and Generative Engine Optimization (GEO) platform designed to help brands gain visibility in AI-generated answers. As buyers increasingly rely on ChatGPT, Gemini, Perplexity, Claude, and Google AI to discover products and services, MentionOS helps brands understand and improve how they appear across these systems. The platform continuously runs real buyer questions across major AI engines, recording whether a brand is mentioned, which competitors appear, and which sources AI models cite. It tracks visibility trends over time and identifies opportunities to improve presence in AI-generated responses. MentionOS goes beyond analytics by acting on these insights. Its AI agent drafts content optimized for citations, publishes directly to websites through integrations with platforms such as Shopify, WooCommerce, WordPress, Webflow, Wix, and Framer, and recommends actions that users can approve or decline. Daily reports explain what changed, what the agent did, and why. Designed for businesses that prefer autonomous execution over manual dashboards, MentionOS combines AI visibility monitoring, content generation, publishing automation, and conversational AI assistance in a single platform.