Checks XRechnung and ZUGFeRD e-invoices (CII and UBL) with the official KoSIT Schematron rules (XRechnung 3.0.2), repairs fixable errors deterministically and with limited AI mapping from values already in the file. Upload, get a report, download the fixed file. No login in beta, files not stored permanently. Planned: €19/file, €49 5-pack (incl. VAT).
Since 2025 German B2B companies must handle e-invoices, and many get rejected over cryptic Schematron errors. Validators only show errors; we wanted a tool that actually fixes them.