Muse

Muse is a sophisticated personal AI agent developed by Meta, designed to function as an autonomous assistant for consumer life coordination. Unlike traditional crawlers that merely index content, Muse utilizes a browser-based environment to interact with websites, fill out forms, and execute transactions. It is integrated into the broader Meta AI ecosystem, leveraging advanced models to help users manage calendars, shopping, and complex bookings.

Muse crawls the web to provide real-time assistance and execute user-directed actions, such as navigating to specific pages to complete a purchase or retrieve up-to-date information. Because it operates as an agentic browser, its traffic is often indistinguishable from a human user, allowing it to interact with dynamic web elements that static scrapers cannot process. Site operators can verify the bot by checking for the 'muse-' user-agent string, though they must balance blocking these requests against the potential loss of traffic from Meta's large user base.