NewAPI v1.3.0 with PDF attachments

E-invoice compliant
via REST API.

XRechnung, ZUGFeRD, Peppol. German & EU compliance out of the box. Production-ready in 5 minutes.

or try it in the Playground
JSON Input
{
  "seller": {
    "name": "Acme GmbH",
    "vatId": "DE123456789"
  },
  "buyer": { "name": "BigCorp AG" },
  "items": [{ "amount": 1500 }]
}
API
XRechnung Output
<?xml version="1.0"?>
<Invoice>
  <Seller>
    <Name>Acme GmbH</Name>
    <VatId>DE123456789</VatId>
  </Seller>
  <Buyer>
    <Name>BigCorp AG</Name>
  </Buyer>
  <Amount>1500.00</Amount>
</Invoice>
KoSIT Valid
Response time: 187ms
28Countries
21+Formats
200msAvg. Latency
99.9%Uptime SLA

Integrated with your tools

Shopify
Shopify
WooCommerce
WooCommerce
Shopware
Shopware
JTL-Shop
JTL-Shop
Magento
Magento
PrestaShop
PrestaShop
n8n
n8n
Zapier
Zapier
Make
Make
Airtable
Airtable
HubSpot
HubSpot
Shopify
Shopify
WooCommerce
WooCommerce
Shopware
Shopware
JTL-Shop
JTL-Shop
Magento
Magento
PrestaShop
PrestaShop
n8n
n8n
Zapier
Zapier
Make
Make
Airtable
Airtable
HubSpot
HubSpot
View all integrations

E-Invoices in 3 Steps

No complex XML logic, no manual validation. Automation in just a few lines of code.

01

Get API Key

Create your account in seconds and instantly receive your free API key for development.

bash
# 1. Create account & copy API key
export XHUB_API_KEY="xhub_sk_..."
02

Integrate SDK

Use our typed SDKs for Node.js, Python, or Go, or call the REST API directly.

bash
# 2. Build your first request
curl -X POST https://service.invoice-api.xhub.io/api/v1/invoice/de/zugferd/generate \
  -H "Authorization: Bearer $XHUB_API_KEY" \
  -H "Content-Type: application/json" \
  -d @invoice.json
03

Send E-Invoice

Generate valid XRechnung & ZUGFeRD PDFs and automatically send them to your customers.

bash
# 3. Response → PDF/A-3 with embedded EN-16931 XML
# Content-Type: application/pdf
# Ready to email or send via Peppol
Go to Quickstart Guide

EXPLAINED IN 60 SECONDS

Watch JSON become a compliant e-invoice

One API call, one PDF/A-3 with embedded EN-16931 XML. XRechnung, ZUGFeRD, Peppol — KoSIT-validated, GDPR-compliant, hosted in the EU.

API key in 60 seconds

Free to start, no credit card required. Production-ready from day one.

Features

Built for German Compliance

All important certifications and standards in one API.

28 Countries

DE, AT, CH, FR, IT, ES, NL, BE, PT, PL, CZ, HU, RO, BG, SE, NO, DK, FI, IE, GB, LU, MT, CY, SI, EE, LV, LT, GR — one API call.

21+ Formats

XRechnung 3.0.2, ZUGFeRD 2.4, Factur-X 1.08, FatturaPA, Peppol BIS 3.0 UBL, ebInterface, qr-bill, and more.

PDF attachments

Embed arbitrary files as PDF/A-3 compliant attachments in ZUGFeRD or Factur-X invoices — proofs of service, audit reports, T&Cs.

Team & roles

Multiple users per organization, roles with fine-grained permissions, email invitations — directly from the Console.

KoSIT Validated

Official Schematron validation against current KoSIT schemas.

GoBD Compliant

Audit-proof archiving with 10-year retention.

Peppol Gateway

Send e-invoices directly via the Peppol network. Coming Q3 2026.

~200ms Response

Fast API responses for seamless integration into real-time workflows.

Developer-First

REST + JSON instead of SOAP/XML. No templates, no dependencies.

Automation-Ready

Integrated with Zapier, Make.com, and n8n for no-code workflows.

Enterprise-Ready

99.9% SLA, dedicated support, and on-premise option available.

Developer-First API

The Stripe of E-Invoicing APIs

While other e-invoicing solutions rely on UI platforms or complex SOAP/XML interfaces, we offer a modern REST API that developers love.

5 Minutes

to your first e-invoice

1 Endpoint

for all 21+ formats

0 Dependencies

just HTTP + JSON

APIs

4 APIs. 28 Countries. One Ecosystem.

Each API usable standalone. Perfectly combinable. Country-specific formats.

Most Popular API

Invoice Generator API

Generate PDF, XRechnung & ZUGFeRD for 28 countries

POST /api/v1/invoice/{countryCode}/{format}/generate

Parser API

Extract structured data from e-invoices

POST /api/v1/invoice/parse

Validator API

Country-specific validation - free without quota

POST /api/v1/invoice/{countryCode}/validate

Formats API

Retrieve all supported formats and countries

GET /api/v1/invoice/formats
View all APIs

THE FULL TOUR

The whole e-invoicing API in one walkthrough

XRechnung, ZUGFeRD and Peppol over REST: from your first API call to a finished, KoSIT-validated e-invoice — explained in one video.

Frequently Asked Questions

Everything you need to know about Invoice-api.xhub.

More questions? Contact us

Ready for compliant e-invoices?

Get started in under 5 minutes. No credit card required.