ARCNM is a cloud-based SaaS platform operated by rattle mng GmbH that calculates the manufacturing cost of parts from 3D CAD (STEP) files and 2D drawings. It combines a physics-based process simulation engine with AI that reads drawings and recognises features, delivering auditable should-cost and quote calculations across lot sizes. It also offers a REST API, webhooks and an MCP server for AI agents, and supports part master data, BOMs, routings and supplier quote comparison.