Factur-X / EN16931 API
High-frequency B2B E-Invoicing Generation
> initialize goFX engine...
> checking European standards...
> EN16931 compliant : true
> Factur-X / ZUGFeRD ready : true
> latency check: < 50ms
_
> HOW_IT_WORKS
Creation & Generation
Generate your official Factur-X format invoice (hybrid PDF/XML) via our high-speed API or through the form in your dashboard.
EN16931 Validation
GofX ensures your invoice is 100% compliant with the European EN16931 standard required by e-invoicing regulations.
Transmission (PPF / PDP)
Send your valid invoice directly to the National E-Invoicing Portal (Chorus Pro) or via your chosen Partner Dematerialization Platform (PDP).
> FREQUENTLY ASKED QUESTIONS
What is Factur-X?
Factur-X is a European standard (EN16931) for electronic invoices. It consists of a readable PDF file containing an embedded XML data file.
Is GoFX free to use?
We offer a free tier for small businesses and developers. You can generate up to 50 invoices per month at no cost.
Do I need to be a developer to use it?
No! While we provide a robust API for developers, you can also use our intuitive dashboard to generate invoices manually.
What formats do you support exactly?
Our API generates hybrid PDFs compliant with Factur-X / ZUGFeRD (EN16931 profile). The XML is automatically embedded into the PDF.
> AVAILABLE_TEMPLATES
Standard B2B Invoice
Clean and professional template suitable for most B2B transactions.
Modern SaaS
Sleek design optimized for SaaS companies with recurring billing.
Detailed Logistics
Advanced layout with extensive line item details and shipping info.
Freelance Creative
Minimalist layout with large fonts and pastel accents for creatives.
E-Commerce Receipt
Compact design featuring product thumbnails and QR codes.
Medical & Healthcare
Clinical blue tones with strict compliance tables for healthcare.
Legal Services
Traditional design with serif fonts and highly structured text blocks.
Construction & Trades
Bold, high-contrast layout emphasizing material breakdown.
Enterprise Corporate
Very dense layout supporting multiple tax layers and multi-currency.
Eco / Green Energy
Earth tones and rounded corners emphasizing environmental stats.
Tech Startup
Glassmorphism touches with vibrant gradients and QR payment link.
Restaurant & Catering
Elegant layout with centered logo and VAT breakdown per dish.
Real Estate
Features large header images for property with elegant typography.
Education & Training
Blue and white design with clear sections for modules and dates.
Cybersecurity
Terminal-style layout with monospaced fonts and green/black theme.