Invoice-api.xhub Blog
Insights, tutorials, and news about e-invoicing, API development, and the German compliance landscape.
All Articles
Automatically Validate and Archive E-Invoices with n8n
Fully automated n8n workflow: receive e-invoices via email, auto-detect the format, validate and archive compliantly — with Slack error alerts.
Patrick JerominekMay 1115 min
Customize invoice templates via API: BlockTemplate tutorial
How to generate PDF invoices with logo, brand colors and dynamic VAT rows using JSON only. Incl. EN 16931 compliance and ZUGFeRD pitfalls.
Patrick JerominekApr 148 min
Create XRechnung with n8n — Step-by-Step Tutorial
Learn how to automatically create XRechnung invoices with n8n and Invoice-api.xhub. From Google Sheets to validated XML — completely without coding.
Patrick JerominekApr 1112 min
Our Biggest Customer Is Ourselves: Dogfooding at xhub.io
invoice.xhub.io runs on the same API we offer developers. A dogfooding story about shared libraries, real validation and our own pitfalls.
Patrick JerominekFeb 128 min
E-Invoicing Mandate 2025: Complete Guide for Developers
E-invoicing becomes mandatory for B2B in 2025. Technical guide with code examples for XRechnung, ZUGFeRD, and Peppol. Implementation checklist included.
Patrick JerominekJan 2015 min
Automatically Validate E-Invoices with n8n
Automated invoice validation with n8n and Invoice-api.xhub: schema checks, error diagnosis and escalation — completely without code.
Patrick JerominekJan 1510 minStay Up to Date
Get the latest articles, tutorials, and updates delivered to your inbox. No spam, only relevant content.
By subscribing you accept our privacy policy.