End-to-End E-Invoicing API

xTool Enterprise API

The flexible, secure, and transparent e-invoicing API for modern businesses

xTool is a modular REST API that enables companies, IT service providers, and ERP vendors to convert, validate, send, receive, and monitor e-invoices — fully automated and compliant.

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Supported:

JSON

XML

ZUGFeRD

XRechnung

Peppol BIS

PDF

What You Can Do with xTool

Comprehensive e-invoicing capabilities for every use case

Validate & Convert

Multi-Format Support

JSON ↔ XML ↔ ZUGFeRD ↔ XRechnung ↔ Peppol BIS
Reliable validation and completion of missing fields
Optional conversion to PDF for easy review

Send & Receive

via Peppol, Email, or ERP

Send invoices directly via the Peppol network
Deliver by email
Forward into your ERP workflow

Full Transparency

Monitoring & Dashboards

API logs and error analysis
Invoice status tracking
Live statistics and dashboards

Fast Implementation

Flexible REST API integration
Supports custom workflows and data formats
End-to-end automation in ERP environments

Here’s how it works

From upload to compliant delivery — in three simple steps

Upload or API Call

Upload your file or send it via REST API

Conversion & Validation

Our converter checks, transforms, validates, and fills in missing fields

Transmission & Monitoring

Delivery via PEPPOL, email, or ERP integration + monitoring dashboard

Any questions?

Write to us!

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Two Integration Models

Choose what fits your needs

Stateless API

Maximum Data Protection

Use lightweight conversion/validation features without persistent storage

✓ Results returned instantly via API

✓ No data saved in the system

Full Workflow Automation

With Storage + Processing

For complete invoice lifecycle management

✓ Convert → validate → store → send

✓ Receive → visualize → validate → forward to ERP

✓ Monitoring, reporting, and process automation

Built for Secure & Scalable E-Invoicing

Compliance, reliability, and flexibility for modern invoicing workflows

Trust layer

Security & Compliance

✓ Certified

Built on enterprise-grade infrastructure with full regulatory alignment.

✓

Encrypted transmission and role-based access control

✓

ISO/IEC 27001-certified

✓

EN 19613-compliant invoice processing

✓

99.9% uptime

✓

Peppol-certified Access Point

Who it’s for

Ideal For

✓ Scalable

Designed for teams that need scalable, compliant e-invoicing.

Companies

Scaling their invoicing processes

IT Service Providers

Delivering invoicing platforms

ERP Vendors

Needing reliable e-invoice compliance + automation

Quick FAQ

How do we integrate?

Via a flexible REST API.

Does it support Peppol?

Yes — including direct Peppol delivery and certified access.

Can we use only validation/conversion?

Yes — choose the stateless API with no persistent storage.

Is monitoring included?

Yes — dashboards, logs, status tracking, and error insights are available.

Ready to get started?

Contact Our Team