Dynamic Document API

Dynamic Document API turns data into finished documents. Connect a workspace and Claude can find your saved templates, read the data each one expects and render the file: PDFs from templates, from HTML and CSS or from Markdown; PNG, JPEG or WebP images from image templates; merged PDFs; and standalone e-invoice XML (XRechnung, EN 16931, Factur-X / ZUGFeRD), validated against the official rules before it is returned. Invoice templates can also embed a ZUGFeRD / Factur-X invoice in the PDF, so accounting software can read it. Rendering is deterministic: the same template and data always give the same document, laid out by a headless browser from your own design. No AI model generates the documents or images. Typical uses: turn an order into an invoice PDF from your invoice template, write a report in Markdown and get a clean PDF, make event or social images from a design template, or create an XRechnung for a German public-sector buyer. Renders made through Claude are free test renders with a TEST watermark until you ask for the final version, so nothing is billed by accident. Files come back as signed download links that expire. Rendering and storage happen in the EU (Germany). Sign in with your Dynamic Document API account (free plan, no card needed) and choose the workspace Claude may use.