Mantle enables organizations to build internal AI agents that automate back-office work through a single prompt. The platform connects to business tools like CRMs, email, calendars, payment systems and analytics, so agents can execute tasks such as generating reports, drafting emails, preparing meeting research and resolving repetitive workflows. Agents operate autonomously in the background, responding to real-time changes and scheduled triggers. Mantle positions itself as an operating system for every company that maintains context about every conversation, lead and process. It is part of Y Combinator's Fall 2025 batch.