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About

InvoiceXML is an API-first platform for European e-invoice compliance. A single REST API generates, validates, and converts every major format covered by EN 16931: Factur-X, ZUGFeRD, XRechnung, UBL, and CII. Generation accepts clean JSON input and returns a compliant XML document, or a PDF/A-3 hybrid invoice with the XML embedded according to format-specific rules. Validation runs the official Schematron rulesets, and returns structured results plus user-friendly plain-language explanations alongside the raw rule output. Format conversion (POST /v1/convert/{from}/to/{format}) maps any supported format to any other through a canonical internal representation. A separate /v1/transform/ namespace handles AI-assisted extraction from legacy PDF invoices into structured XML. No-Code integrations expose the core operations to non-developers. MCP server provides the compliance toolkit for AI Agentic workflows. Always up to date with the latest standard requirements - zero maintenance.

About

ProSonata speeds up and simplifies your project management! The cloud-based agency software is designed for small to medium-sized agencies, freelancers, and project-based service providers in the GSA region. It offers a comprehensive suite of tools to streamline project management, time tracking, invoicing (including e-invoice and XRechnung), and task organization (Kanban boards and Gantt charts to manage tasks and resources), contact management and reportings. The platform is fast, user-friendly, easy to learn and accessible across devices, including Mac, PC, and tablets. ProSonata offers low-priced and flexible subscription packages tailored to the size and needs of your team. Optional add-ons are available to enhance functionality. ProSonata is created, hosted and supported in Germany since 2011 . With ProSonata you work conform the DSGVO and in accordance with the requirements of GoBD. For more information or to try a free demo, visit prosonata.de.

Platforms Supported

Windows
Mac
Linux
Cloud
On-Premises
iPhone
iPad
Android
Chromebook

Platforms Supported

Windows
Mac
Linux
Cloud
On-Premises
iPhone
iPad
Android
Chromebook

Audience

Developers and B2B SaaS teams building invoicing into their products: ERP integrators, accounting software, fintech platforms, freelancer and SMB tools, and any SaaS serving European markets where e-invoicing mandates are active or imminent (France, Germany, Belgium, Poland, with more queued behind them).

Audience

Agencies and service providers looking for a software solution to manage, calculate and bill projects online

Support

Phone Support
24/7 Live Support
Online

Support

Phone Support
24/7 Live Support
Online

API

Offers API

API

Offers API

Screenshots and Videos

No images available

Screenshots and Videos

Pricing

$9/month
Free Version
Free Trial

Pricing

€8/month for 1 User (Basic)
€18/month for 3 Users
€30/month for 5 Users
€50/month for 10 Users
€80/month for 20 Users

additional flexible subscription packages, optional extensions
Free Version
Free Trial

Reviews/Ratings

Overall 0.0 / 5
ease 0.0 / 5
features 0.0 / 5
design 0.0 / 5
support 0.0 / 5

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Reviews/Ratings

Overall 0.0 / 5
ease 0.0 / 5
features 0.0 / 5
design 0.0 / 5
support 0.0 / 5

This software hasn't been reviewed yet. Be the first to provide a review:

Review this Software

Training

Documentation
Webinars
Live Online
In Person

Training

Documentation
Webinars
Live Online
In Person

Company Information

InvoiceXML
Founded: 2024
Germany
www.invoicexml.com

Company Information

ProSonata
Founded: 2011
Germany
www.prosonata.de/

Alternatives

E‑Rechnungs-Studio

E‑Rechnungs-Studio

Casserus UG (haftungsbeschränkt)

Alternatives

E‑Rechnungs-Studio

E‑Rechnungs-Studio

Casserus UG (haftungsbeschränkt)
xSuite

xSuite

xSuite Group
Facturwise

Facturwise

Billio Software Services s.r.o.
PDF Xpansion SDK

PDF Xpansion SDK

soft Xpansion GmbH & Co. KG
Perfect PDF

Perfect PDF

soft Xpansion

Categories

Categories

Advertising Agency Features

Campaign Management
Collaboration
Document Management
File Sharing
Project Management
Task Management
Time Tracking

Integrations

GetMyInvoices
Make
Memtime
Microsoft Power Automate
Salesforce
Zapier
n8n

Integrations

GetMyInvoices
Make
Memtime
Microsoft Power Automate
Salesforce
Zapier
n8n
Claim InvoiceXML and update features and information
Claim InvoiceXML and update features and information
Claim ProSonata and update features and information
Claim ProSonata and update features and information