# Dtwo > Dtwo is a security control plane for AI agents. Its gateway applies policies to tool calls between agents and connected systems. This is the Dtwo marketing site. For setup instructions and technical reference, use the product documentation. For reusable policies, use the Policy Store. ## Product - [Dtwo](https://dtwo.ai/): Product overview, policy authoring, gateway enforcement, and audit logging. ## Resources - [Blog](https://blog.dtwo.ai) - [Docs](https://docs.dtwo.ai) - [Policy Store](https://www.intentbasedpolicies.com) ## Optional - [Documentation index](https://docs.dtwo.ai/llms.txt): Guides and reference pages in Markdown. - [Blog index](https://blog.dtwo.ai/llms.txt): Published articles from the Dtwo team.