One API for European
Compliance
Validate, audit, and generate e-invoices per XRechnung 3.x, ZUGFeRD 2.x, and EN 16931 – with an API that integrates in 30 minutes.
EN 16931
Ready
XRechnung
Compliant
Peppol
Access Point
GoBD
Audit Trail
Overview
A Unified Platform for E-Invoicing and Invoice Intelligence
EU Trace connects your ERP to the Peppol network through accredited infrastructure, while adding an intelligent layer that validates, analyzes, and optimizes every invoice.
Certified Peppol Connectivity
through accredited Access Points
Real-Time Compliance Validation
before any invoice is sent
ERP-Embedded Integration
Odoo, D365, Sage, Xero & more
AI-Powered Invoice Intelligence
analytics, forecasting & fraud detection
Secure Cloud Infrastructure
powered by Microsoft Azure
No complexity. No rejected invoices. No manual uploads.
One platform. No manual processing.
The Problem Is Costing You Time & Money
System integrators waste thousands of hours rebuilding the same compliance logic for every client. Manual processes, chasing updates, and fragile audit trails — it does not scale.
Rebuilding Every Project
SIs rebuild EN 16931 compliance from scratch for each client – a costly time sink.
Chasing Regulation Updates
XRechnung changes quarterly. Manual updates are error-prone and time-consuming.
Manual Audit Prep
Excel-based GoBD compliance tracking is slow, fragile, and not tamper-proof.
One API. One integration. Automatic compliance for every client.
Send JSON Payload
Send your invoice data as structured JSON to the EU Trace API.
Validate EN 16931
Automatic validation against XRechnung, ZUGFeRD, and EN 16931 schemas.
Store in Audit Ledger
Every validation is immutably stored in the SHA-256 audit chain.
Receive via Webhook
Get validation results in real-time via webhook or API polling.
Three Reasons System Integrators Are Switching to EU Trace
Stop rebuilding compliance for every client. A single API that handles validation, audit, and delivery across all your projects.
Certified Compliance Coverage
KoSIT-validated for XRechnung 3.x, ZUGFeRD 2.x, and EN 16931 — no gaps, no surprises, no last-minute fixes before audits.
Tamper-Proof Audit Trail
SHA-256 hash chain that satisfies GoBD §257 HGB. Every validation is immutably stored and auditor-ready on day one.
30-Minute Integration
TypeScript, Python, and Go SDKs with published OpenAPI spec. Your first validated e-invoice — before your lunch break ends.
From Integration to Validation in 4 Simple Steps
Connect once, validate every invoice automatically — no manual steps, no custom code per client.
Send Invoice Data
Send your invoice as structured JSON to the EU Trace API via SDK or direct HTTP.
Validate Automatically
Instant schema validation against XRechnung, ZUGFeRD, and EN 16931 standards.
Store in Audit Ledger
Every validation is immutably recorded in the SHA-256 audit chain for GoBD compliance.
Retrieve Results
Get real-time results via webhook callback or API polling — your choice.
Trusted by System Integrators and Technology Partners
Our platform is built on open standards, certified compliance, and seamless integration with the tools your team already uses.
KoSIT Certification
KoSIT SKK 3.0.1
PDF/A-3 Conformance
ISO 19005-3
EN 16931 Ready
EN 16931 Compliant
Open Source SDKs
MIT License
Frequently Asked Questions
Quick answers to the most common questions about EU Trace, our integration process, and compliance coverage.
EU Trace is a compliance API platform that validates e-invoices against EN 16931, XRechnung, and ZUGFeRD standards. Built by Kairosys GmbH in Frankfurt, Germany.
We support XRechnung 3.x, ZUGFeRD 2.x, EN 16931, Peppol BIS, and GoBD-compliant audit ledgers.
Integration takes 30 minutes with our SDKs for TypeScript, Python, and Go.
Yes, our Local CLI tool supports offline validation — ideal for development environments and CI/CD pipelines.
Start free in the sandbox. Pricing starts at €1,000/month for the Starter tier.
Still have questions? Contact our team
Ready to Integrate? Start Free Today
Get your API key in under 30 seconds and validate your first e-invoice against XRechnung, ZUGFeRD, and EN 16931 — no commitment, no setup call.