National e-Invoice System (KSeF)
new integration library for PHP

KSeF biblioteka PHP

In addition to the REST API interface, which we announced in the previous entry (KSeF REST API), we have prepared a library for PHP that enables integration with our KSeF REST API interface. It is now available for download directly after going to the tab Download.

We are working hard to provide you with a set of libraries for the other most popular programming languages, namely Java and .NET, which will implement REST API functionalities.

Of course, for the purposes of smooth integration, we have also prepared a detailed Technical Documentation together with a description of the business processes within which the use of individual operations is described. We encourage you to read the prepared description and diagrams.

Additionally, the shared ZIP archive file contains a file example.php, which when run on a PHP server allows you to run a form with all supported operations:

ksef server php

    We will keep you updated on all progress in providing further functionalities and tools.

    The ksefapi.pl team