The Circular Wood 4.0 Workflow API is a comprehensive and automated “file-to-factory” system that bridges the gap between design using waste wood resources and production processes aligned with Smart Industry principles. This software serves as the core IT infrastructure for an end-to-end automated workflow, enabling seamless data flow from material availability to final production. Key features include full traceability, real-time process monitoring, and integration of design and manufacturing stages. The API is composed of several interconnected components that manage the entire workflow, from intelligent resource matching and design generation to production preparation and execution; facilitating efficient, sustainable, and transparent fabrication processes.