There are 2 repositories under peppol topic.
Oxalis - PEPPOL Access Point open source implementation - Core component
Library for reading and creating European-compliant electronic invoices (EN 16931)
A modern object-oriented PHP library to create valid UBL and Peppol BIS files
Java library with shared Peppol components - identifier handling, codelists, SBDH handler, SMP Client, SML Client
A set of preconfigured rules for the phive engine
Graphische Benutzeroberfläche für die Visualisierung und Validierung von XRechnung (und anderen EN16931-konformen E-Rechnungen) sowie ein Tool für die Berechnung und Prüfung von Leitweg-IDs. || Engl.: Graphical User Interface for visualization and validation of XRechnung (and other EN16931 compliant e-invoices) as well as tool for Leitweg-ID calculation and validation.
The official Peppol, TOOP and DE4A Directory software
Peppol and Oxalis supporting library
UniStyles - Templates for displaying PEPPOL BIS EN (European Norm) invoices and credit notes, maintained by Unimaze Software.
AS2 handler for the use with Peppol
Continued on https://github.com/phax/as2-peppol
Usefull classes for PEPPOL programming in NET Core.
This project contains clasess to create a SMP Client based on the BDXL and SMP specifications developed by the OASIS BDXR Technical Committee and its predecessors developed within PEPPOL.
A Library containing all UBL types for C#NET Core. See PEPPOL
This project contains a set of classes that represent the concepts from the 4-Corner Model as used in the BDXL and SMP specifications developed by the OASIS BDXR Technical Committee and its predecessors developed within PEPPOL.
Validator Configuration Peppol BIS Billing 3.0 [MIRROR OF GitLab]
An SMP server implementation based on the specifications developed by the OASIS BDXR Technical Committee and its predecessor developed within PEPPOL.
A reference implementation meant as an example how to use the PSB api using PHP.
All Common C# NETCore Code used in EInvoicing Libraries
Fork of ISO20022 Docs from PEPPOL Repository (extended)
Italian PEPPOL Authority website.
yii3-i
Digital Invoice is an easy wrapper around easybill/zugferd-php, josemmo/einvoicing and atgp/factur-x that will allow you generate Factur-x and UBL (Peppol, Cius...) invoices in a very easy way.
A robust invoice validation and processing API to enhance business operations.