KSeF API – functionalities, tools, integration

KSeF API functions and features

Below we present noa list of currently available and future functionalities enabling full integration with National e-Invoice System:

  • Sending and receiving e-Invoices and UPOs from the KSeF system
  • Generating e-Invoices in XML format
  • Generating a preview (visualization) of e-Invoices (PDF or HTML)
  • Searching and downloading sales and cost invoices
  • Support for bulk sending of e-invoices (coming soon)
  • Notifications on receipt of a new cost e-invoice (coming soon)

Available tools

Current and future tools:

  • Direct call to the REST API
  • Programming libraries in: JAVA, C#, PHP (more coming soon)
  • Mobile application and available via website (coming soon)
  • Desktop application (coming soon)

Integration methods

Depending on your needs, you can use our communication tools directly from your system (On-premise) or through our architecture (SaaS), which ensures the highest level of availability.

Interested? Maybe you have additional questions? Please contact us!