Pulumi has introduced a new REST API that enhances its already extensible cloud engineering platform, designed to interconnect and automate modern cloud systems. This API, which has been in use internally to power the Pulumi SDK, CLI, and Console, is now fully documented and available for public use, offering functionality to manage projects, stacks, cloud resources, policies, and more. The platform supports custom integrations and scenarios, enabling users to build unique solutions such as custom dashboards, metadata-driven automation projects, and enhanced security responses. Authentication and authorization are managed through Pulumi's identity and RBAC systems, ensuring secure access to manage teams, users, and audit logs. The REST API complements the Automation API and Webhooks, allowing users to efficiently query and manipulate cloud resources, making it a powerful tool for creating innovative cloud solutions.